21478204944

Names of 21478204944

• Cardinal: 21478204944 can be written as Twenty-one billion, four hundred seventy-eight million, two hundred four thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 2.1478204944 × 10¹⁰

Factors of 21478204944

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 5844

Divisors of 21478204944

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 54 56 63 72 81 84 108 112 126 144 162 168 189 216 252 324 336 378 432 439 504 567 648 756 878 1008 1134 1296 1317 1512 1756 2268 2634 3024 3073 3512 3951 4536 5268 5393 6146 7024 7902 9072 9219 10536 10786 11853 12292 15804 16179 18438 21072 21572 23706 24584 27657 31608 32358 35559 36876 37751 43144 47412 48537 49168 55314 63216 64716 71118 73752 75502 82971 86288 94824 97074 110628 113253 129432 142236 145611 147504 151004 165942 189648 194148 221256 226506 248913 258864 284472 291222 302008 331884 339759 388296 436833 442512 453012 497826 568944 582444 604016 663768 679518 776592 873666 906024 995652 1019277 1164888 1327536 1359036 1747332 1812048 1991304 2038554 2329776 2367527 2718072 3057831 3494664 3982608 4077108 4735054 5436144 6115662 6989328 7102581 8154216 9470108 12231324 14205162 16308432 16572689 18940216 21307743 24462648 28410324 33145378 37880432 42615486 48925296 49718067 56820648 63923229 66290756 85230972 99436134 113641296 127846458 132581512 149154201 170461944 191769687 198872268 255692916 265163024 298308402 340923888 383539374 397744536 447462603 511385832 596616804 767078748 795489072 894925206 1022771664 1193233608 1342387809 1534157496 1789850412 2386467216 2684775618 3068314992 3579700824 5369551236 7159401648 10739102472 21478204944
• Sum of all divisors σ(n): 71219786880
• Sum of proper divisors (its aliquot sum) s(n): 49741581936
• 21478204944 is an abundant number, because the sum of its proper divisors (49741581936) is greater than itself. Its abundance is 28263376992

Bases of 21478204944

• Binary: 10100000000001100110110011000010000₂
• Hexadecimal: 0x500336610
• Base-36: 9V7KH00

Squares and roots of 21478204944

• 21478204944 squared (21478204944²) is 461313287616466043136
• 21478204944 cubed (21478204944³) is 9908181334816874943491752464384
• The square root of 21478204944 is 146554.4436173807
• The cube root of 21478204944 is 2779.7089625107

Scales and comparisons

• 21,478,204,944 seconds is equal to 682 years, 48 weeks, 6 days, 8 hours, 2 minutes, 24 seconds.
• To count from 1 to 21,478,204,944 would take you about one thousand, three hundred sixty-five 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 21478204944 cubic inches would be around 231.6 feet tall.

Recreational maths with 21478204944

• 21478204944 backwards is 44940287412
• The number of decimal digits it has is: 11
• The sum of 21478204944's digits is 45
• More coming soon!