21129905961072

Names of 21129905961072

• Cardinal: 21129905961072 can be written as Twenty-one trillion, one hundred twenty-nine billion, nine hundred five million, nine hundred sixty-one thousand and seventy-two.

Scientific notation

• Scientific notation: 2.1129905961072 × 10¹³

Factors of 21129905961072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1478

Divisors of 21129905961072

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 31 36 48 62 72 93 124 144 186 248 279 372 379 496 558 744 758 961 1063 1116 1137 1488 1516 1922 2126 2232 2274 2883 3032 3189 3411 3844 4252 4464 4548 5766 6064 6378 6822 7688 8504 8649 9096 9567 11532 11749 12756 13644 15376 17008 17298 18192 19134 23064 23498 25512 27288 32953 34596 35247 38268 46128 46996 51024 54576 65906 69192 70494 76536 93992 98859 105741 131812 138384 140988 143641 153072 187984 197718 211482 263624 281976 287282 296577 364219 395436 402877 422964 430923 527248 563952 574564 593154 728438 790872 805754 845928 861846 1021543 1092657 1149128 1186308 1208631 1292769 1456876 1581744 1611508 1691856 1723692 2043086 2185314 2298256 2372616 2417262 2585538 2913752 3064629 3223016 3277971 3447384 3625893 4086172 4370628 4452871 4745232 4834524 5171076 5827504 6129258 6446032 6555942 6894768 7251786 8172344 8741256 8905742 9193887 9669048 10342152 12258516 12489187 13111884 13358613 14503572 16344688 17482512 17811484 18387774 19338096 20684304 24517032 24978374 26223768 26717226 29007144 35622968 36775548 37467561 40075839 49034064 49956748 52447536 53434452 58014288 71245936 73551096 74935122 80151678 99913496 106868904 112402683 138039001 147102192 149870244 152690383 160303356 199826992 213737808 224805366 276078002 299740488 305380766 320606712 387164797 414117003 449610732 458071149 552156004 599480976 610761532 641213424 774329594 828234006 899221464 916142298 1104312008 1161494391 1221523064 1242351009 1374213447 1548659188 1656468012 1798442928 1832284596 2208624016 2322988782 2443046128 2484702018 2748426894 3097318376 3312936024 3484483173 3664569192 4645977564 4733401873 4969404036 5496853788 6194636752 6625872048 6968966346 7329138384 9291955128 9466803746 9938808072 10993707576 13937932692 14200205619 18583910256 18933607492 19877616144 21987415152 27875865384 28400411238 37867214984 42600616857 55751730768 56800822476 75734429968 85201233714 113601644952 146735458063 170402467428 227203289904 293470916126 340804934856 440206374189 586941832252 681609869712 880412748378 1173883664504 1320619122567 1760825496756 2347767329008 2641238245134 3521650993512 5282476490268 7043301987024 10564952980536 21129905961072
• Sum of all divisors σ(n): 61322767263576
• Sum of proper divisors (its aliquot sum) s(n): 40192861302504
• 21129905961072 is an abundant number, because the sum of its proper divisors (40192861302504) is greater than itself. Its abundance is 19062955341432

Bases of 21129905961072

• Binary: 100110011011110110000100010011111100001110000₂
• Hexadecimal: 0x1337B089F870
• Base-36: 7HMY0G8S0

Squares and roots of 21129905961072

• 21129905961072 squared (21129905961072²) is 446472925923746039979389184
• 21129905961072 cubed (21129905961072³) is 9433930938933418932277149551019041845248
• The square root of 21129905961072 is 4596727.7449368263
• The cube root of 21129905961072 is 27646.0138596823

Scales and comparisons

• 21,129,905,961,072 seconds is equal to 671,865 years, 33 weeks, 5 days, 18 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,129,905,961,072 would take you about one million, six hundred seventy-nine thousand, six hundred sixty-four 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 21129905961072 cubic inches would be around 2303.8 feet tall.

Recreational maths with 21129905961072

• 21129905961072 backwards is 27016950992112
• The number of decimal digits it has is: 14
• The sum of 21129905961072's digits is 54
• More coming soon!