21391722427504

Names of 21391722427504

• Cardinal: 21391722427504 can be written as Twenty-one trillion, three hundred ninety-one billion, seven hundred twenty-two million, four hundred twenty-seven thousand, five hundred four.

Scientific notation

• Scientific notation: 2.1391722427504 × 10¹³

Factors of 21391722427504

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 175

Divisors of 21391722427504

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 4 8 11 13 16 22 26 44 52 88 104 143 149 169 176 208 286 298 338 572 596 676 1144 1192 1352 1639 1859 1937 2197 2288 2384 2704 3278 3718 3874 4394 6556 7436 7748 8788 13112 14872 15496 17576 21307 24167 25181 26224 28561 29744 30992 35152 42614 48334 50362 57122 85228 96668 100724 114244 170456 193336 201448 228488 276991 314171 327353 340912 371293 386672 402896 456976 553982 628342 654706 742586 1107964 1256684 1309412 1485172 2215928 2513368 2618824 2970344 3600883 4084223 4255589 4431856 4826809 5026736 5237648 5940688 7201766 8168446 8511178 9653618 14403532 16336892 17022356 19307236 28807064 32673784 34044712 38614472 46811479 53094899 55322657 57614128 62748517 65347568 68089424 77228944 93622958 106189798 110645314 125497034 187245916 212379596 221290628 250994068 374491832 424759192 442581256 501988136 608549227 690233687 719194541 748983664 815730721 849518384 885162512 1003976272 1217098454 1380467374 1438389082 1631461442 2434196908 2760934748 2876778164 3262922884 4868393816 5521869496 5753556328 6525845768 7911139951 8973037931 9349529033 9736787632 11043738992 11507112656 13051691536 15822279902 17946075862 18699058066 31644559804 35892151724 37398116132 63289119608 71784303448 74796232264 102844819363 121543877429 126578239216 143568606896 149592464528 205689638726 243087754858 411379277452 486175509716 822758554904 972351019432 1336982651719 1645517109808 1944702038864 2673965303438 5347930606876 10695861213752 21391722427504
• Sum of all divisors σ(n): 49310922079800
• Sum of proper divisors (its aliquot sum) s(n): 27919199652296
• 21391722427504 is an abundant number, because the sum of its proper divisors (27919199652296) is greater than itself. Its abundance is 6527477224792

Bases of 21391722427504

• Binary: 100110111010010100110000001000011010001110000₂
• Hexadecimal: 0x1374A6043470
• Base-36: 7KZ7Z7R74

Squares and roots of 21391722427504

• 21391722427504 squared (21391722427504²) is 457605788415377626535670016
• 21391722427504 cubed (21391722427504³) is 9788976007000883682598472920512626520064
• The square root of 21391722427504 is 4625118.6392895913
• The cube root of 21391722427504 is 27759.7308848871

Scales and comparisons

• 21,391,722,427,504 seconds is equal to 680,190 years, 31 weeks, 2 days, 22 hours, 45 minutes, 4 seconds.
• To count from 1 to 21,391,722,427,504 would take you about one million, seven hundred thousand, four hundred seventy-six 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 21391722427504 cubic inches would be around 2313.3 feet tall.

Recreational maths with 21391722427504

• 21391722427504 backwards is 40572422719312
• The number of decimal digits it has is: 14
• The sum of 21391722427504's digits is 49
• More coming soon!