21584557137

Names of 21584557137

• Cardinal: 21584557137 can be written as Twenty-one billion, five hundred eighty-four million, five hundred fifty-seven thousand, one hundred thirty-seven.

Scientific notation

• Scientific notation: 2.1584557137 × 10¹⁰

Factors of 21584557137

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 268

Divisors of 21584557137

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 11 13 19 33 39 57 71 143 151 169 209 213 247 361 429 453 507 627 741 781 923 1083 1349 1661 1859 1963 2343 2717 2769 2869 3211 3971 4047 4693 4983 5577 5889 8151 8607 9633 10153 10721 11913 11999 14079 14839 17537 21593 25519 25631 30459 31559 32163 35321 35997 37297 44517 51623 52611 54511 61009 64779 76557 76893 94677 105963 111891 117931 131989 139373 154869 163533 183027 192907 203699 227981 280709 281941 333203 353793 395967 410267 418119 484861 578721 599621 611097 671099 683943 708643 842127 845823 999609 1230801 1454583 1533103 1798863 1811849 2013297 2125929 2240689 2507791 2648087 3665233 3870281 4331639 4599309 5333471 5435547 6722067 7523373 7795073 7944261 9212359 10995699 11610843 12994917 16000413 19930339 23385219 27637077 29128957 34425131 42573091 47648029 50313653 59791017 87386871 101335949 103275393 127719273 142944087 150940959 304007847 378676441 553450183 654077489 1136029323 1660350549 1962232467 7194852379 21584557137
• Sum of all divisors σ(n): 36626328576
• Sum of proper divisors (its aliquot sum) s(n): 15041771439
• 21584557137 is a deficient number, because the sum of its proper divisors (15041771439) is less than itself. Its deficiency is 6542785698

Bases of 21584557137

• Binary: 10100000110100010100011010001010001₂
• Hexadecimal: 0x5068A3451
• Base-36: 9WYVYVL

Squares and roots of 21584557137

• 21584557137 squared (21584557137²) is 465893106800417636769
• 21584557137 cubed (21584557137³) is 10056096383468057736302992570353
• The square root of 21584557137 is 146916.8374863821
• The cube root of 21584557137 is 2784.2894435975

Scales and comparisons

• 21,584,557,137 seconds is equal to 686 years, 16 weeks, 5 days, 6 hours, 18 minutes, 57 seconds.
• To count from 1 to 21,584,557,137 would take you about one thousand, three hundred seventy-two 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 21584557137 cubic inches would be around 232 feet tall.

Recreational maths with 21584557137

• 21584557137 backwards is 73175548512
• The number of decimal digits it has is: 11
• The sum of 21584557137's digits is 48
• More coming soon!