21053138964

Names of 21053138964

• Cardinal: 21053138964 can be written as Twenty-one billion, fifty-three million, one hundred thirty-eight thousand, nine hundred sixty-four.

Scientific notation

• Scientific notation: 2.1053138964 × 10¹⁰

Factors of 21053138964

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 806

Divisors of 21053138964

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 11 12 13 22 23 26 33 39 44 46 52 66 69 71 78 92 121 132 138 142 143 156 213 242 253 276 284 286 299 363 426 429 484 506 572 598 683 726 759 781 852 858 897 923 1012 1196 1366 1452 1518 1562 1573 1633 1716 1794 1846 2049 2343 2732 2769 2783 3036 3124 3146 3266 3289 3588 3692 4098 4686 4719 4899 5538 5566 6292 6532 6578 7513 8196 8349 8591 8879 9372 9438 9798 9867 10153 11076 11132 13156 15026 15709 16698 17182 17758 17963 18876 19596 19734 20306 21229 22539 25773 26637 30052 30459 31418 33396 34364 35516 35926 36179 39468 40612 42458 45078 47127 48493 51546 53274 53889 60918 62836 63687 71852 72358 82643 84916 90156 94254 96986 97669 103092 106548 107778 108537 111683 121836 127374 144716 145479 165286 172799 188508 193972 195338 197593 204217 215556 217074 223366 233519 247929 254748 290958 293007 330572 335049 345598 390676 395186 408434 434148 446732 467038 495858 518397 533423 581916 586014 592779 612651 630409 670098 691196 700557 790372 816868 934076 991716 1036794 1066846 1074359 1115339 1172028 1185558 1225302 1260818 1340196 1401114 1600269 1891227 1900789 2073588 2133692 2148718 2230678 2246387 2371116 2450604 2521636 2568709 2802228 3200538 3223077 3346017 3782454 3801578 4297436 4461356 4492774 5137418 5702367 5867653 6401076 6446154 6692034 6739161 6934499 7564908 7603156 7706127 8985548 10274836 11404734 11735306 12268729 12892308 13384068 13478322 13868998 14499407 15412254 17602959 20803497 22809468 23470612 24537458 24710257 26956644 27737996 28998814 30824508 35205918 36806187 41606994 43498221 49074916 49420514 57997628 70411836 73612374 74130771 76279489 83213988 86996442 98841028 134956019 147224748 148261542 152558978 159493477 173992884 228838467 269912038 296523084 305117956 318986954 404868057 457676934 478480431 539824076 637973908 809736114 915353868 956960862 1619472228 1754428247 1913921724 3508856494 5263284741 7017712988 10526569482 21053138964
• Sum of all divisors σ(n): 61622249472
• Sum of proper divisors (its aliquot sum) s(n): 40569110508
• 21053138964 is an abundant number, because the sum of its proper divisors (40569110508) is greater than itself. Its abundance is 19515971544

Bases of 21053138964

• Binary: 10011100110110111010110100000010100₂
• Hexadecimal: 0x4E6DD6814
• Base-36: 9O6HTZO

Squares and roots of 21053138964

• 21053138964 squared (21053138964²) is 443234660237494993296
• 21053138964 cubed (21053138964³) is 9331480895641307337114936385344
• The square root of 21053138964 is 145096.9984665431
• The cube root of 21053138964 is 2761.2493015737

Scales and comparisons

• 21,053,138,964 seconds is equal to 669 years, 22 weeks, 14 hours, 9 minutes, 24 seconds.
• To count from 1 to 21,053,138,964 would take you about one thousand, three hundred thirty-eight 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 21053138964 cubic inches would be around 230.1 feet tall.

Recreational maths with 21053138964

• 21053138964 backwards is 46983135012
• The number of decimal digits it has is: 11
• The sum of 21053138964's digits is 42
• More coming soon!