21313424544

Names of 21313424544

• Cardinal: 21313424544 can be written as Twenty-one billion, three hundred thirteen million, four hundred twenty-four thousand, five hundred forty-four.

Scientific notation

• Scientific notation: 2.1313424544 × 10¹⁰

Factors of 21313424544

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7161805

Divisors of 21313424544

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 31 32 48 62 93 96 124 186 248 372 496 744 992 1488 2976 7161769 14323538 21485307 28647076 42970614 57294152 85941228 114588304 171882456 222014839 229176608 343764912 444029678 666044517 687529824 888059356 1332089034 1776118712 2664178068 3552237424 5328356136 7104474848 10656712272 21313424544
• Sum of all divisors σ(n): 57752513280
• Sum of proper divisors (its aliquot sum) s(n): 36439088736
• 21313424544 is an abundant number, because the sum of its proper divisors (36439088736) is greater than itself. Its abundance is 15125664192

Bases of 21313424544

• Binary: 10011110110011000010000110010100000₂
• Hexadecimal: 0x4F6610CA0
• Base-36: 9SHGNMO

Squares and roots of 21313424544

• 21313424544 squared (21313424544²) is 454262065792781607936
• 21313424544 cubed (21313424544³) is 9681880262476014340614927581184
• The square root of 21313424544 is 145991.1796787737
• The cube root of 21313424544 is 2772.5820799123

Scales and comparisons

• 21,313,424,544 seconds is equal to 677 years, 36 weeks, 3 days, 3 hours, 42 minutes, 24 seconds.
• To count from 1 to 21,313,424,544 would take you about one thousand, three hundred fifty-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 21313424544 cubic inches would be around 231 feet tall.

Recreational maths with 21313424544

• 21313424544 backwards is 44542431312
• The number of decimal digits it has is: 11
• The sum of 21313424544's digits is 33
• More coming soon!