About the Number

127620476280

127620476279 ← → 127620476281

2進数表記:1110110110110110001011110110101111000

漢数字表記:千二百七十六億二千四十七万六千二百八十

素因数分解:

2 3 × 3 2 × 5 1 × 11 2 × 17 1 × 23 1 × 59 1 × 127 1

素因数の和:265
約数の個数: 1152
約数和(自身を含む): 516276633600
約数和(自身を除く): 388656157320

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 17, 18, 20, 22, 23, 24, 30, 33, 34, 36, 40, 44, 45, 46, 51, 55, 59, 60, 66, 68, 69, 72, 85, 88, 90, 92, 99, 102, 110, 115, 118, 120, 121, 127, 132, 136, 138, 153, 165, 170, 177, 180, 184, 187, 198, 204, 207, 220, 230, 236, 242, 253, 254, 255, 264, 276, 295, 306, 330, 340, 345, 354, 360, 363, 374, 381, 391, 396, 408, 414, 440, 460, 472, 484, 495, 506, 508, 510, 531, 552, 561, 590, 605, 612, 635, 649, 660, 680, 690, 708, 726, 748, 759, 762, 765, 782, 792, 828, 885, 920, 935, 968, 990, 1003, 1012, 1016, 1020, 1035, 1062, 1089, 1122, 1143, 1173, 1180, 1210, 1224, 1265, 1270, 1298, 1320, 1357, 1380, 1397, 1416, 1452, 1496, 1518, 1524, 1530, 1564, 1656, 1683, 1770, 1815, 1870, 1905, 1947, 1955, 1980, 2006, 2024, 2040, 2057, 2070, 2124, 2159, 2178, 2244, 2277, 2286, 2346, 2360, 2420, 2530, 2540, 2596, 2655, 2714, 2760, 2783, 2794, 2805, 2904, 2921, 3009, 3036, 3048, 3060, 3128, 3245, 3366, 3519, 3540, 3630, 3740, 3795, 3810, 3894, 3910, 3960, 4012, 4071, 4114, 4140, 4191, 4248, 4301, 4318, 4356, 4488, 4554, 4572, 4692, 4840, 5015, 5060, 5080, 5192, 5310, 5428, 5445, 5566, 5588, 5610, 5715, 5841, 5842, 5865, 6018, 6072, 6120, 6171, 6477, 6490, 6732, 6785, 6985, 7038, 7080, 7139, 7260, 7480, 7493, 7590, 7620, 7788, 7820, 8024, 8142, 8228, 8280, 8349, 8382, 8415, 8602, 8636, 8712, 8763, 9027, 9108, 9144, 9384, 9735, 10030, 10120, 10285, 10620, 10795, 10856, 10890, 11033, 11132, 11176, 11220, 11385, 11430, 11682, 11684, 11730, 12036, 12213, 12342, 12573, 12903, 12954, 12980, 13464, 13570, 13915, 13970, 14076, 14278, 14520, 14605, 14927, 14986, 15045, 15180, 15240, 15367, 15576, 15640, 16284, 16456, 16698, 16764, 16830, 17204, 17272, 17526, 17595, 18054, 18216, 18513, 19431, 19470, 20060, 20355, 20570, 20955, 21240, 21417, 21505, 21590, 21780, 22066, 22264, 22440, 22479, 22770, 22860, 23069, 23364, 23368, 23460, 23749, 24072, 24426, 24684, 25047, 25146, 25806, 25908, 25960, 26289, 27140, 27830, 27940, 28152, 28556, 29205, 29210, 29854, 29972, 30090, 30360, 30734, 30855, 32131, 32385, 32568, 33099, 33396, 33528, 33660, 34408, 35052, 35190, 35695, 36108, 37026, 37465, 38709, 38862, 38940, 40120, 40710, 41140, 41745, 41910, 42834, 43010, 43180, 43560, 43815, 44132, 44781, 44958, 45135, 45540, 45720, 46101, 46138, 46728, 46920, 47311, 47498, 48852, 49368, 49657, 50094, 50292, 51612, 51816, 52578, 54280, 55165, 55660, 55880, 57112, 58410, 58420, 59708, 59944, 60180, 61065, 61468, 61710, 62865, 64251, 64262, 64515, 64770, 66198, 66792, 67320, 67437, 69207, 70104, 70380, 71247, 71390, 72216, 74052, 74635, 74930, 76835, 77418, 77724, 77880, 81420, 82280, 82423, 83490, 83820, 85668, 86020, 86360, 87630, 88264, 89562, 89916, 90270, 91080, 92202, 92276, 92565, 94622, 94996, 96393, 97155, 97704, 99297, 99314, 100188, 100584, 103224, 105156, 107085, 110330, 111320, 112395, 115345, 116820, 116840, 118745, 119416, 120360, 121363, 122130, 122936, 123420, 125235, 125730, 127381, 128502, 128524, 129030, 129540, 131445, 132396, 134343, 134874, 138303, 138414, 140760, 141933, 142494, 142780, 148104, 148971, 149270, 149860, 153670, 154836, 155448, 160655, 162840, 164197, 164846, 165495, 166980, 167640, 171336, 172040, 172339, 175260, 179124, 179832, 180540, 184404, 184552, 185130, 189244, 189992, 192786, 193545, 194310, 198594, 198628, 200376, 207621, 210312, 213741, 214170, 220660, 223905, 224790, 230505, 230690, 233640, 236555, 237490, 242726, 244260, 246840, 247269, 248285, 250470, 251460, 253759, 254762, 257004, 257048, 258060, 259080, 261239, 262890, 264792, 268686, 269748, 276606, 276828, 283866, 284988, 285560, 289179, 297942, 298540, 299720, 307340, 309672, 321255, 321310, 328394, 329692, 330990, 333960, 337185, 344678, 346035, 350520, 353441, 356235, 358248, 361080, 364089, 368808, 370260, 378488, 382143, 385572, 387090, 388620, 397188, 397256, 412115, 415242, 425799, 427482, 428340, 441320, 446913, 447810, 449580, 461010, 461380, 473110, 474980, 481965, 485452, 488520, 492591, 494538, 496485, 496570, 500940, 502920, 507518, 509524, 514008, 516120, 517017, 522478, 525780, 537372, 539496, 546227, 553212, 553656, 567732, 569976, 578358, 595884, 597080, 606815, 614680, 636905, 642510, 642620, 656788, 659384, 661980, 671715, 674370, 689356, 691515, 692070, 706882, 709665, 712470, 728178, 740520, 741807, 744855, 761277, 764286, 771144, 774180, 777240, 783717, 794376, 820985, 824230, 830484, 851598, 854964, 856680, 861695, 893826, 895620, 899160, 906653, 922020, 922760, 946220, 949960, 963930, 970904, 985182, 989076, 992970, 993140, 1001880, 1015036, 1019048, 1034034, 1038105, 1044956, 1051560, 1060323, 1068705, 1074744, 1092267, 1092454, 1106424, 1135464, 1146429, 1156716, 1191768, 1213630, 1236345, 1268795, 1273810, 1285020, 1285240, 1306195, 1313576, 1323960, 1343430, 1348740, 1378712, 1383030, 1384140, 1401191, 1413764, 1419330, 1424940, 1445895, 1456356, 1477773, 1483614, 1489710, 1522554, 1528572, 1548360, 1551051, 1567434, 1638681, 1641970, 1648460, 1660968, 1703196, 1709928, 1723390, 1767205, 1787652, 1791240, 1813306, 1820445, 1844040, 1892440, 1895729, 1910715, 1927860, 1970364, 1978152, 1985940, 1986280, 2030072, 2068068, 2076210, 2089912, 2120646, 2128995, 2137410, 2184534, 2184908, 2234565, 2283831, 2292858, 2313432, 2351151, 2427260, 2462955, 2472690, 2537590, 2547620, 2570040, 2585085, 2612390, 2686860, 2697480, 2719959, 2731135, 2766060, 2768280, 2791349, 2802382, 2827528, 2838660, 2849880, 2891790, 2912712, 2929763, 2955546, 2967228, 2979420, 3045108, 3057144, 3102102, 3134868, 3180969, 3277362, 3283940, 3296920, 3406392, 3446780, 3534410, 3575304, 3626612, 3640890, 3709035, 3791458, 3806385, 3821430, 3855720, 3918585, 3940728, 3971880, 4136136, 4152420, 4203573, 4241292, 4257990, 4274820, 4369068, 4369816, 4469130, 4533265, 4567662, 4585716, 4702302, 4854520, 4916043, 4925910, 4945380, 5075180, 5095240, 5170170, 5224780, 5301615, 5373720, 5439918, 5461335, 5462270, 5532120, 5582698, 5604764, 5677320, 5687187, 5732145, 5783580, 5859526, 5911092, 5934456, 5958840, 6008497, 6090216, 6204204, 6269736, 6361938, 6554724, 6567880, 6893560, 7005955, 7068820, 7253224, 7281780, 7388865, 7418070, 7582916, 7612770, 7642860, 7755255, 7837170, 8159877, 8193405, 8304840, 8374047, 8407146, 8482584, 8515980, 8549640, 8738136, 8789289, 8938260, 9066530, 9135324, 9171432, 9404604, 9478645, 9832086, 9851820, 9890760, 10150360, 10340340, 10449560, 10603230, 10879836, 10922670, 10924540, 11165396, 11209528, 11374374, 11419155, 11464290, 11567160, 11719052, 11755755, 11822184, 12016994, 12408408, 12610719, 12723876, 13109448, 13599795, 13956745, 14011910, 14137640, 14563560, 14648815, 14777730, 14836140, 15165832, 15225540, 15285720, 15413101, 15510510, 15674340, 15904845, 16319754, 16386810, 16748094, 16814292, 17031960, 17061561, 17578578, 17876520, 18025491, 18133060, 18270648, 18809208, 18957290, 19664172, 19703640, 20680680, 20853019, 21017865, 21206460, 21759672, 21845340, 21849080, 22330792, 22748748, 22838310, 22928580, 23438104, 23511510, 24033988, 24580215, 25122141, 25221438, 25447752, 26367867, 27199590, 27913490, 28023820, 28435935, 29297630, 29555460, 29672280, 30042485, 30451080, 30826202, 31021020, 31348680, 31809690, 32227393, 32639508, 32773620, 33496188, 33628584, 34123122, 35157156, 36050982, 36266120, 37914580, 39328344, 40799385, 41706038, 41870235, 42035730, 42412920, 43690680, 43946445, 45497496, 45676620, 45857160, 46239303, 47023020, 48067976, 49160430, 50244282, 50442876, 52735734, 54076473, 54399180, 55826980, 56047640, 56871870, 58595260, 59110920, 60084970, 61652404, 62042040, 62559057, 63053595, 63619380, 64454786, 65279016, 65547240, 66992376, 68246244, 70314312, 72101964, 75829160, 77065505, 81598770, 83412076, 83740470, 84071460, 85307805, 87892890, 90127455, 91353240, 92478606, 94046040, 96682179, 98320860, 100488564, 100885752, 104265095, 105471468, 108152946, 108798360, 111653960, 113743740, 117190520, 120169940, 123304808, 125118114, 125610705, 126107190, 127238760, 128909572, 131839335, 136492488, 138717909, 144203928, 154131010, 161136965, 163197540, 166824152, 167480940, 168142920, 170615610, 175785780, 180254910, 184957212, 187677171, 193364358, 196641720, 200977128, 208530190, 210942936, 216305892, 227487480, 231196515, 240339880, 250236228, 251221410, 252214380, 257819144, 263678670, 270382365, 277435818, 290046537, 308262020, 312795285, 322273930, 326395080, 334961880, 341231220, 351571560, 354501323, 360509820, 369914424, 375354342, 386728716, 417060380, 432611784, 462393030, 483410895, 500472456, 502442820, 504428760, 527357340, 540764730, 554871636, 580093074, 616524040, 625590570, 644547860, 682462440, 693589545, 709002646, 721019640, 750708684, 773457432, 834120760, 924786060, 938385855, 966821790, 1004885640, 1054714680, 1063503969, 1081529460, 1109743272, 1160186148, 1251181140, 1289095720, 1387179090, 1418005292, 1450232685, 1501417368, 1772506615, 1849572120, 1876771710, 1933643580, 2127007938, 2163058920, 2320372296, 2502362280, 2774358180, 2836010584, 2900465370, 3190511907, 3545013230, 3753543420, 3867287160, 4254015876, 5317519845, 5548716360, 5800930740, 6381023814, 7090026460, 7507086840, 8508031752, 10635039690, 11601861480, 12762047628, 14180052920, 15952559535, 21270079380, 25524095256, 31905119070, 42540158760, 63810238140, 127620476280]

約数ペア:
[(1, 127620476280), (2, 63810238140), (3, 42540158760), (4, 31905119070), (5, 25524095256), (6, 21270079380), (8, 15952559535), (9, 14180052920), (10, 12762047628), (11, 11601861480), (12, 10635039690), (15, 8508031752), (17, 7507086840), (18, 7090026460), (20, 6381023814), (22, 5800930740), (23, 5548716360), (24, 5317519845), (30, 4254015876), (33, 3867287160), (34, 3753543420), (36, 3545013230), (40, 3190511907), (44, 2900465370), (45, 2836010584), (46, 2774358180), (51, 2502362280), (55, 2320372296), (59, 2163058920), (60, 2127007938), (66, 1933643580), (68, 1876771710), (69, 1849572120), (72, 1772506615), (85, 1501417368), (88, 1450232685), (90, 1418005292), (92, 1387179090), (99, 1289095720), (102, 1251181140), (110, 1160186148), (115, 1109743272), (118, 1081529460), (120, 1063503969), (121, 1054714680), (127, 1004885640), (132, 966821790), (136, 938385855), (138, 924786060), (153, 834120760), (165, 773457432), (170, 750708684), (177, 721019640), (180, 709002646), (184, 693589545), (187, 682462440), (198, 644547860), (204, 625590570), (207, 616524040), (220, 580093074), (230, 554871636), (236, 540764730), (242, 527357340), (253, 504428760), (254, 502442820), (255, 500472456), (264, 483410895), (276, 462393030), (295, 432611784), (306, 417060380), (330, 386728716), (340, 375354342), (345, 369914424), (354, 360509820), (360, 354501323), (363, 351571560), (374, 341231220), (381, 334961880), (391, 326395080), (396, 322273930), (408, 312795285), (414, 308262020), (440, 290046537), (460, 277435818), (472, 270382365), (484, 263678670), (495, 257819144), (506, 252214380), (508, 251221410), (510, 250236228), (531, 240339880), (552, 231196515), (561, 227487480), (590, 216305892), (605, 210942936), (612, 208530190), (635, 200977128), (649, 196641720), (660, 193364358), (680, 187677171), (690, 184957212), (708, 180254910), (726, 175785780), (748, 170615610), (759, 168142920), (762, 167480940), (765, 166824152), (782, 163197540), (792, 161136965), (828, 154131010), (885, 144203928), (920, 138717909), (935, 136492488), (968, 131839335), (990, 128909572), (1003, 127238760), (1012, 126107190), (1016, 125610705), (1020, 125118114), (1035, 123304808), (1062, 120169940), (1089, 117190520), (1122, 113743740), (1143, 111653960), (1173, 108798360), (1180, 108152946), (1210, 105471468), (1224, 104265095), (1265, 100885752), (1270, 100488564), (1298, 98320860), (1320, 96682179), (1357, 94046040), (1380, 92478606), (1397, 91353240), (1416, 90127455), (1452, 87892890), (1496, 85307805), (1518, 84071460), (1524, 83740470), (1530, 83412076), (1564, 81598770), (1656, 77065505), (1683, 75829160), (1770, 72101964), (1815, 70314312), (1870, 68246244), (1905, 66992376), (1947, 65547240), (1955, 65279016), (1980, 64454786), (2006, 63619380), (2024, 63053595), (2040, 62559057), (2057, 62042040), (2070, 61652404), (2124, 60084970), (2159, 59110920), (2178, 58595260), (2244, 56871870), (2277, 56047640), (2286, 55826980), (2346, 54399180), (2360, 54076473), (2420, 52735734), (2530, 50442876), (2540, 50244282), (2596, 49160430), (2655, 48067976), (2714, 47023020), (2760, 46239303), (2783, 45857160), (2794, 45676620), (2805, 45497496), (2904, 43946445), (2921, 43690680), (3009, 42412920), (3036, 42035730), (3048, 41870235), (3060, 41706038), (3128, 40799385), (3245, 39328344), (3366, 37914580), (3519, 36266120), (3540, 36050982), (3630, 35157156), (3740, 34123122), (3795, 33628584), (3810, 33496188), (3894, 32773620), (3910, 32639508), (3960, 32227393), (4012, 31809690), (4071, 31348680), (4114, 31021020), (4140, 30826202), (4191, 30451080), (4248, 30042485), (4301, 29672280), (4318, 29555460), (4356, 29297630), (4488, 28435935), (4554, 28023820), (4572, 27913490), (4692, 27199590), (4840, 26367867), (5015, 25447752), (5060, 25221438), (5080, 25122141), (5192, 24580215), (5310, 24033988), (5428, 23511510), (5445, 23438104), (5566, 22928580), (5588, 22838310), (5610, 22748748), (5715, 22330792), (5841, 21849080), (5842, 21845340), (5865, 21759672), (6018, 21206460), (6072, 21017865), (6120, 20853019), (6171, 20680680), (6477, 19703640), (6490, 19664172), (6732, 18957290), (6785, 18809208), (6985, 18270648), (7038, 18133060), (7080, 18025491), (7139, 17876520), (7260, 17578578), (7480, 17061561), (7493, 17031960), (7590, 16814292), (7620, 16748094), (7788, 16386810), (7820, 16319754), (8024, 15904845), (8142, 15674340), (8228, 15510510), (8280, 15413101), (8349, 15285720), (8382, 15225540), (8415, 15165832), (8602, 14836140), (8636, 14777730), (8712, 14648815), (8763, 14563560), (9027, 14137640), (9108, 14011910), (9144, 13956745), (9384, 13599795), (9735, 13109448), (10030, 12723876), (10120, 12610719), (10285, 12408408), (10620, 12016994), (10795, 11822184), (10856, 11755755), (10890, 11719052), (11033, 11567160), (11132, 11464290), (11176, 11419155), (11220, 11374374), (11385, 11209528), (11430, 11165396), (11682, 10924540), (11684, 10922670), (11730, 10879836), (12036, 10603230), (12213, 10449560), (12342, 10340340), (12573, 10150360), (12903, 9890760), (12954, 9851820), (12980, 9832086), (13464, 9478645), (13570, 9404604), (13915, 9171432), (13970, 9135324), (14076, 9066530), (14278, 8938260), (14520, 8789289), (14605, 8738136), (14927, 8549640), (14986, 8515980), (15045, 8482584), (15180, 8407146), (15240, 8374047), (15367, 8304840), (15576, 8193405), (15640, 8159877), (16284, 7837170), (16456, 7755255), (16698, 7642860), (16764, 7612770), (16830, 7582916), (17204, 7418070), (17272, 7388865), (17526, 7281780), (17595, 7253224), (18054, 7068820), (18216, 7005955), (18513, 6893560), (19431, 6567880), (19470, 6554724), (20060, 6361938), (20355, 6269736), (20570, 6204204), (20955, 6090216), (21240, 6008497), (21417, 5958840), (21505, 5934456), (21590, 5911092), (21780, 5859526), (22066, 5783580), (22264, 5732145), (22440, 5687187), (22479, 5677320), (22770, 5604764), (22860, 5582698), (23069, 5532120), (23364, 5462270), (23368, 5461335), (23460, 5439918), (23749, 5373720), (24072, 5301615), (24426, 5224780), (24684, 5170170), (25047, 5095240), (25146, 5075180), (25806, 4945380), (25908, 4925910), (25960, 4916043), (26289, 4854520), (27140, 4702302), (27830, 4585716), (27940, 4567662), (28152, 4533265), (28556, 4469130), (29205, 4369816), (29210, 4369068), (29854, 4274820), (29972, 4257990), (30090, 4241292), (30360, 4203573), (30734, 4152420), (30855, 4136136), (32131, 3971880), (32385, 3940728), (32568, 3918585), (33099, 3855720), (33396, 3821430), (33528, 3806385), (33660, 3791458), (34408, 3709035), (35052, 3640890), (35190, 3626612), (35695, 3575304), (36108, 3534410), (37026, 3446780), (37465, 3406392), (38709, 3296920), (38862, 3283940), (38940, 3277362), (40120, 3180969), (40710, 3134868), (41140, 3102102), (41745, 3057144), (41910, 3045108), (42834, 2979420), (43010, 2967228), (43180, 2955546), (43560, 2929763), (43815, 2912712), (44132, 2891790), (44781, 2849880), (44958, 2838660), (45135, 2827528), (45540, 2802382), (45720, 2791349), (46101, 2768280), (46138, 2766060), (46728, 2731135), (46920, 2719959), (47311, 2697480), (47498, 2686860), (48852, 2612390), (49368, 2585085), (49657, 2570040), (50094, 2547620), (50292, 2537590), (51612, 2472690), (51816, 2462955), (52578, 2427260), (54280, 2351151), (55165, 2313432), (55660, 2292858), (55880, 2283831), (57112, 2234565), (58410, 2184908), (58420, 2184534), (59708, 2137410), (59944, 2128995), (60180, 2120646), (61065, 2089912), (61468, 2076210), (61710, 2068068), (62865, 2030072), (64251, 1986280), (64262, 1985940), (64515, 1978152), (64770, 1970364), (66198, 1927860), (66792, 1910715), (67320, 1895729), (67437, 1892440), (69207, 1844040), (70104, 1820445), (70380, 1813306), (71247, 1791240), (71390, 1787652), (72216, 1767205), (74052, 1723390), (74635, 1709928), (74930, 1703196), (76835, 1660968), (77418, 1648460), (77724, 1641970), (77880, 1638681), (81420, 1567434), (82280, 1551051), (82423, 1548360), (83490, 1528572), (83820, 1522554), (85668, 1489710), (86020, 1483614), (86360, 1477773), (87630, 1456356), (88264, 1445895), (89562, 1424940), (89916, 1419330), (90270, 1413764), (91080, 1401191), (92202, 1384140), (92276, 1383030), (92565, 1378712), (94622, 1348740), (94996, 1343430), (96393, 1323960), (97155, 1313576), (97704, 1306195), (99297, 1285240), (99314, 1285020), (100188, 1273810), (100584, 1268795), (103224, 1236345), (105156, 1213630), (107085, 1191768), (110330, 1156716), (111320, 1146429), (112395, 1135464), (115345, 1106424), (116820, 1092454), (116840, 1092267), (118745, 1074744), (119416, 1068705), (120360, 1060323), (121363, 1051560), (122130, 1044956), (122936, 1038105), (123420, 1034034), (125235, 1019048), (125730, 1015036), (127381, 1001880), (128502, 993140), (128524, 992970), (129030, 989076), (129540, 985182), (131445, 970904), (132396, 963930), (134343, 949960), (134874, 946220), (138303, 922760), (138414, 922020), (140760, 906653), (141933, 899160), (142494, 895620), (142780, 893826), (148104, 861695), (148971, 856680), (149270, 854964), (149860, 851598), (153670, 830484), (154836, 824230), (155448, 820985), (160655, 794376), (162840, 783717), (164197, 777240), (164846, 774180), (165495, 771144), (166980, 764286), (167640, 761277), (171336, 744855), (172040, 741807), (172339, 740520), (175260, 728178), (179124, 712470), (179832, 709665), (180540, 706882), (184404, 692070), (184552, 691515), (185130, 689356), (189244, 674370), (189992, 671715), (192786, 661980), (193545, 659384), (194310, 656788), (198594, 642620), (198628, 642510), (200376, 636905), (207621, 614680), (210312, 606815), (213741, 597080), (214170, 595884), (220660, 578358), (223905, 569976), (224790, 567732), (230505, 553656), (230690, 553212), (233640, 546227), (236555, 539496), (237490, 537372), (242726, 525780), (244260, 522478), (246840, 517017), (247269, 516120), (248285, 514008), (250470, 509524), (251460, 507518), (253759, 502920), (254762, 500940), (257004, 496570), (257048, 496485), (258060, 494538), (259080, 492591), (261239, 488520), (262890, 485452), (264792, 481965), (268686, 474980), (269748, 473110), (276606, 461380), (276828, 461010), (283866, 449580), (284988, 447810), (285560, 446913), (289179, 441320), (297942, 428340), (298540, 427482), (299720, 425799), (307340, 415242), (309672, 412115), (321255, 397256), (321310, 397188), (328394, 388620), (329692, 387090), (330990, 385572), (333960, 382143), (337185, 378488), (344678, 370260), (346035, 368808), (350520, 364089), (353441, 361080), (356235, 358248)]

このpageの処理時間: 0.8837597370147705 seconds