21440175648

Names of 21440175648

• Cardinal: 21440175648 can be written as Twenty-one billion, four hundred forty million, one hundred seventy-five thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 2.1440175648 × 10¹⁰

Factors of 21440175648

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 101

Divisors of 21440175648

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 43 48 53 86 96 106 129 159 172 212 258 318 344 424 516 636 688 848 1032 1272 1376 1696 1849 2064 2279 2544 2809 3698 4128 4558 5088 5547 5618 6837 7396 8427 9116 11094 11236 13674 14792 16854 18232 22188 22472 27348 29584 33708 36464 44376 44944 54696 59168 67416 72928 79507 88752 89888 97997 109392 120787 134832 159014 177504 195994 218784 238521 241574 269664 293991 318028 362361 391988 477042 483148 587982 636056 724722 783976 954084 966296 1175964 1272112 1449444 1567952 1908168 1932592 2351928 2544224 2898888 3135904 3816336 3865184 4213871 4703856 5193841 5797776 7632672 8427742 9407712 10387682 11595552 12641613 15581523 16855484 20775364 25283226 31163046 33710968 41550728 50566452 62326092 67421936 83101456 101132904 124652184 134843872 166202912 202265808 223335163 249304368 404531616 446670326 498608736 670005489 893340652 1340010978 1786681304 2680021956 3573362608 5360043912 7146725216 10720087824 21440175648
• Sum of all divisors σ(n): 58728146400
• Sum of proper divisors (its aliquot sum) s(n): 37287970752
• 21440175648 is an abundant number, because the sum of its proper divisors (37287970752) is greater than itself. Its abundance is 15847795104

Bases of 21440175648

• Binary: 10011111101111011110001111000100000₂
• Hexadecimal: 0x4FDEF1E20
• Base-36: 9UKXDEO

Squares and roots of 21440175648

• 21440175648 squared (21440175648²) is 459681131817092219904
• 21440175648 cubed (21440175648³) is 9855644208229898603356001697792
• The square root of 21440175648 is 146424.6415327693
• The cube root of 21440175648 is 2778.0674096453

Scales and comparisons

• 21,440,175,648 seconds is equal to 681 years, 38 weeks, 4 hours, 20 minutes, 48 seconds.
• To count from 1 to 21,440,175,648 would take you about one thousand, three hundred sixty-three 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 21440175648 cubic inches would be around 231.5 feet tall.

Recreational maths with 21440175648

• 21440175648 backwards is 84657104412
• The number of decimal digits it has is: 11
• The sum of 21440175648's digits is 42
• More coming soon!