21656013696

Names of 21656013696

• Cardinal: 21656013696 can be written as Twenty-one billion, six hundred fifty-six million, thirteen thousand, six hundred ninety-six.

Scientific notation

• Scientific notation: 2.1656013696 × 10¹⁰

Factors of 21656013696

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 310

Divisors of 21656013696

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 41 48 53 64 72 82 96 106 123 128 144 159 164 192 211 212 246 288 318 328 369 384 422 424 477 492 576 633 636 656 738 844 848 954 984 1152 1266 1272 1312 1476 1681 1688 1696 1899 1908 1968 2173 2532 2544 2624 2952 3362 3376 3392 3798 3816 3936 4346 5043 5064 5088 5248 5904 6519 6724 6752 6784 7596 7632 7872 8651 8692 10086 10128 10176 11183 11808 13038 13448 13504 15129 15192 15264 15744 17302 17384 19557 20172 20256 20352 22366 23616 25953 26076 26896 27008 30258 30384 30528 33549 34604 34768 39114 40344 40512 44732 47232 51906 52152 53792 60516 60768 61056 67098 69208 69536 77859 78228 80688 81024 89093 89464 100647 103812 104304 107584 121032 121536 134196 138416 139072 155718 156456 161376 178186 178928 201294 207624 208608 215168 242064 243072 267279 268392 276832 278144 311436 312912 322752 354691 356372 357856 402588 415248 417216 458503 484128 534558 536784 553664 622872 625824 645504 709382 712744 715712 801837 805176 830496 834432 917006 968256 1064073 1069116 1073568 1107328 1245744 1251648 1375509 1418764 1425488 1431424 1603674 1610352 1660992 1834012 1936512 2128146 2138232 2147136 2491488 2503296 2751018 2837528 2850976 3192219 3207348 3220704 3321984 3668024 4126527 4256292 4276464 4294272 4982976 5502036 5675056 5701952 6384438 6414696 6441408 7336048 8253054 8512584 8552928 9965952 11004072 11350112 11403904 12768876 12829392 12882816 14672096 16506108 17025168 17105856 18798623 22008144 22700224 25537752 25658784 29344192 33012216 34050336 34211712 37597246 44016288 45400448 51075504 51317568 56395869 58688384 66024432 68100672 75194492 88032576 102151008 102635136 112791738 132048864 136201344 150388984 169187607 176065152 204302016 225583476 264097728 300777968 338375214 408604032 451166952 528195456 601555936 676750428 902333904 1203111872 1353500856 1804667808 2406223744 2707001712 3609335616 5414003424 7218671232 10828006848 21656013696
• Sum of all divisors σ(n): 65388056760
• Sum of proper divisors (its aliquot sum) s(n): 43732043064
• 21656013696 is an abundant number, because the sum of its proper divisors (43732043064) is greater than itself. Its abundance is 22076029368

Bases of 21656013696

• Binary: 10100001010110011001000101110000000₂
• Hexadecimal: 0x50ACC8B80
• Base-36: 9Y5FJ40

Squares and roots of 21656013696

• 21656013696 squared (21656013696²) is 468982929201339580416
• 21656013696 cubed (21656013696³) is 10156300737974408295035789377536
• The square root of 21656013696 is 147159.8236476247
• The cube root of 21656013696 is 2787.3585606235

Scales and comparisons

• 21,656,013,696 seconds is equal to 688 years, 30 weeks, 6 days, 7 hours, 21 minutes, 36 seconds.
• To count from 1 to 21,656,013,696 would take you about one thousand, three hundred seventy-seven 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 21656013696 cubic inches would be around 232.3 feet tall.

Recreational maths with 21656013696

• 21656013696 backwards is 69631065612
• The number of decimal digits it has is: 11
• The sum of 21656013696's digits is 45
• More coming soon!