31143799791

Names of 31143799791

• Cardinal: 31143799791 can be written as Thirty-one billion, one hundred forty-three million, seven hundred ninety-nine thousand, seven hundred ninety-one.

Scientific notation

• Scientific notation: 3.1143799791 × 10¹⁰

Factors of 31143799791

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7160

Divisors of 31143799791

• Number of divisors d(n): 60
• Complete list of divisors:
  1 3 9 13 17 39 51 117 153 169 221 507 663 1521 1989 2197 2873 6591 7127 8619 19773 21381 25857 28561 37349 64143 85683 92651 112047 121159 257049 277953 336141 363477 485537 833859 1090431 1204463 1456611 1575067 3613389 4369833 4725201 10840167 14175603 15658019 20475871 46974057 61427613 140922171 184282839 203554247 266186323 610662741 798558969 1831988223 2395676907 3460422199 10381266597 31143799791
• Sum of all divisors σ(n): 51608102832
• Sum of proper divisors (its aliquot sum) s(n): 20464303041
• 31143799791 is a deficient number, because the sum of its proper divisors (20464303041) is less than itself. Its deficiency is 10679496750

Bases of 31143799791

• Binary: 11101000000010100001010101111101111₂
• Hexadecimal: 0x74050ABEF
• Base-36: EB27PPR

Squares and roots of 31143799791

• 31143799791 squared (31143799791²) is 969936265421891643681
• 31143799791 cubed (31143799791³) is 30207500860329629499296974270671
• The square root of 31143799791 is 176476.0601073133
• The cube root of 31143799791 is 3146.2304716979

Scales and comparisons

• 31,143,799,791 seconds is equal to 990 years, 14 weeks, 2 days, 15 hours, 29 minutes, 51 seconds.
• To count from 1 to 31,143,799,791 would take you about one thousand, nine hundred eighty 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 31143799791 cubic inches would be around 262.2 feet tall.

Recreational maths with 31143799791

• 31143799791 backwards is 19799734113
• The number of decimal digits it has is: 11
• The sum of 31143799791's digits is 54
• More coming soon!