21539609832

Names of 21539609832

• Cardinal: 21539609832 can be written as Twenty-one billion, five hundred thirty-nine million, six hundred nine thousand, eight hundred thirty-two.

Scientific notation

• Scientific notation: 2.1539609832 × 10¹⁰

Factors of 21539609832

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2871

Divisors of 21539609832

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 12 13 24 26 39 52 78 89 104 156 178 267 312 317 356 534 634 712 951 1068 1157 1268 1902 2136 2314 2447 2536 3471 3804 4121 4628 4894 6942 7341 7608 8242 9256 9788 12363 13884 14682 16484 19576 24726 27768 28213 29364 31811 32968 49452 56426 58728 63622 84639 95433 98904 112852 127244 169278 190866 217783 225704 254488 338556 366769 381732 435566 653349 677112 733538 763464 775699 871132 1100307 1306698 1467076 1551398 1742264 2200614 2327097 2613396 2831179 2934152 3102796 4401228 4654194 5226792 5662358 6205592 8493537 8802456 9308388 10084087 11324716 16987074 18616776 20168174 22649432 30252261 33974148 40336348 60504522 67948296 69037211 80672696 121009044 138074422 207111633 242018088 276148844 414223266 552297688 828446532 897483743 1656893064 1794967486 2692451229 3589934972 5384902458 7179869944 10769804916 21539609832
• Sum of all divisors σ(n): 58851878400
• Sum of proper divisors (its aliquot sum) s(n): 37312268568
• 21539609832 is an abundant number, because the sum of its proper divisors (37312268568) is greater than itself. Its abundance is 15772658736

Bases of 21539609832

• Binary: 10100000011110111000101110011101000₂
• Hexadecimal: 0x503DC5CE8
• Base-36: 9W84LBC

Squares and roots of 21539609832

• 21539609832 squared (21539609832²) is 463954791714791068224
• 21539609832 cubed (21539609832³) is 9993405193223425832943453178368
• The square root of 21539609832 is 146763.7892397167
• The cube root of 21539609832 is 2782.3554486249

Scales and comparisons

• 21,539,609,832 seconds is equal to 684 years, 46 weeks, 3 days, 57 minutes, 12 seconds.
• To count from 1 to 21,539,609,832 would take you about one thousand, three hundred sixty-nine 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 21539609832 cubic inches would be around 231.9 feet tall.

Recreational maths with 21539609832

• 21539609832 backwards is 23890693512
• The number of decimal digits it has is: 11
• The sum of 21539609832's digits is 48
• More coming soon!