21380993908736

Names of 21380993908736

• Cardinal: 21380993908736 can be written as Twenty-one trillion, three hundred eighty billion, nine hundred ninety-three million, nine hundred eight thousand, seven hundred thirty-six.

Scientific notation

• Scientific notation: 2.1380993908736 × 10¹³

Factors of 21380993908736

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 23
• Sum of prime factors: 409

Divisors of 21380993908736

• Number of divisors d(n): 342
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 32 44 49 56 64 77 88 98 112 128 154 176 196 224 256 308 352 389 392 448 512 539 616 704 778 784 896 1024 1078 1232 1408 1556 1568 1792 2048 2156 2464 2723 2816 3112 3136 3584 4096 4279 4312 4928 5446 5632 6224 6272 7168 8192 8558 8624 9856 10892 11264 12448 12544 14336 16384 17116 17248 19061 19712 21784 22528 24896 25088 28672 29953 32768 34232 34496 38122 39424 43568 45056 49792 50176 57344 59906 65536 68464 68992 76244 78848 87136 90112 99584 100352 114688 119812 131072 136928 137984 151321 152488 157696 174272 180224 199168 200704 209671 229376 239624 262144 273856 275968 302642 304976 315392 348544 360448 398336 401408 419342 458752 479248 547712 551936 605284 609952 630784 697088 720896 796672 802816 838684 917504 958496 1059247 1095424 1103872 1210568 1219904 1261568 1394176 1441792 1593344 1605632 1664531 1677368 1835008 1916992 2118494 2190848 2207744 2421136 2439808 2523136 2788352 2883584 3186688 3211264 3329062 3354736 3833984 4236988 4381696 4415488 4842272 4879616 5046272 5576704 6373376 6422528 6658124 6709472 7414729 7667968 8473976 8763392 8830976 9684544 9759232 10092544 11153408 11651717 12746752 12845056 13316248 13418944 14829458 15335936 16947952 17526784 17661952 19369088 19518464 20185088 22306816 23303434 25493504 26632496 26837888 29658916 30671872 33895904 35053568 35323904 38738176 39036928 44613632 46606868 50987008 53264992 53675776 59317832 61343744 67791808 70107136 70647808 77476352 78073856 81562019 89227264 93213736 101974016 106529984 107351552 118635664 122687488 135583616 140214272 141295616 154952704 156147712 163124038 178454528 186427472 213059968 214703104 237271328 245374976 271167232 280428544 309905408 312295424 326248076 356909056 372854944 426119936 429406208 474542656 490749952 542334464 560857088 619810816 624590848 652496152 713818112 745709888 852239872 858812416 949085312 981499904 1084668928 1121714176 1239621632 1249181696 1304992304 1491419776 1704479744 1717624832 1898170624 1962999808 2169337856 2479243264 2498363392 2609984608 2982839552 3408959488 3435249664 3796341248 3925999616 4338675712 4958486528 4996726784 5219969216 5965679104 6817918976 6870499328 7592682496 7851999232 8677351424 9916973056 10439938432 11931358208 13635837952 13740998656 15185364992 17354702848 19833946112 20879876864 23862716416 27271675904 27481997312 30370729984 34709405696 39667892224 41759753728 47725432832 54543351808 54963994624 60741459968 69418811392 83519507456 95450865664 109086703616 121482919936 138837622784 167039014912 190901731328 218173407232 242965839872 277675245568 334078029824 381803462656 436346814464 485931679744 668156059648 763606925312 971863359488 1336312119296 1527213850624 1943726718976 2672624238592 3054427701248 5345248477184 10690496954368 21380993908736
• Sum of all divisors σ(n): 54405431858988
• Sum of proper divisors (its aliquot sum) s(n): 33024437950252
• 21380993908736 is an abundant number, because the sum of its proper divisors (33024437950252) is greater than itself. Its abundance is 11643444041516

Bases of 21380993908736

• Binary: 100110111001000100110100011000000000000000000₂
• Hexadecimal: 0x1372268C0000
• Base-36: 7KUAJQD4W

Squares and roots of 21380993908736

• 21380993908736 squared (21380993908736²) is 457146900525405935497117696
• 21380993908736 cubed (21380993908736³) is 9774255095531246424877613178260874592256
• The square root of 21380993908736 is 4623958.6837185299
• The cube root of 21380993908736 is 27755.0893606241

Scales and comparisons

• 21,380,993,908,736 seconds is equal to 679,849 years, 24 weeks, 3 days, 6 hours, 38 minutes, 56 seconds.
• To count from 1 to 21,380,993,908,736 would take you about one million, six hundred ninety-nine thousand, six hundred twenty-three years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21380993908736 cubic inches would be around 2312.9 feet tall.

Recreational maths with 21380993908736

• 21380993908736 backwards is 63780939908312
• The number of decimal digits it has is: 14
• The sum of 21380993908736's digits is 68
• More coming soon!