31913305845

Names of 31913305845

• Cardinal: 31913305845 can be written as Thirty-one billion, nine hundred thirteen million, three hundred five thousand, eight hundred forty-five.

Scientific notation

• Scientific notation: 3.1913305845 × 10¹⁰

Factors of 31913305845

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 2006

Divisors of 31913305845

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 15 17 51 85 211 255 449 633 1055 1321 1347 2245 3165 3587 3963 6605 6735 7633 10761 17935 19815 22457 22899 38165 53805 67371 94739 112285 114495 278731 284217 336855 473695 593129 836193 1393655 1421085 1610563 1779387 2965645 4180965 4738427 4831689 8052815 8896935 10083193 14215281 23692135 24158445 30249579 50415965 71076405 125150219 151247895 375450657 625751095 1877253285 2127553723 6382661169 10637768615 31913305845
• Sum of all divisors σ(n): 54483321600
• Sum of proper divisors (its aliquot sum) s(n): 22570015755
• 31913305845 is a deficient number, because the sum of its proper divisors (22570015755) is less than itself. Its deficiency is 9343290090

Bases of 31913305845

• Binary: 11101101110001011100110011011110101₂
• Hexadecimal: 0x76E2E66F5
• Base-36: ENSCWDX

Squares and roots of 31913305845

• 31913305845 squared (31913305845²) is 1018459089956511164025
• 31913305845 cubed (31913305845³) is 32502396428402508526686786226125
• The square root of 31913305845 is 178642.9563262991
• The cube root of 31913305845 is 3171.9324610517

Scales and comparisons

• 31,913,305,845 seconds is equal to 1,014 years, 38 weeks, 4 days, 23 hours, 10 minutes, 45 seconds.
• To count from 1 to 31,913,305,845 would take you about two thousand and twenty-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 31913305845 cubic inches would be around 264.3 feet tall.

Recreational maths with 31913305845

• 31913305845 backwards is 54850331913
• The number of decimal digits it has is: 11
• The sum of 31913305845's digits is 42
• More coming soon!