31236728311985

Names of 31236728311985

• Cardinal: 31236728311985 can be written as Thirty-one trillion, two hundred thirty-six billion, seven hundred twenty-eight million, three hundred eleven thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 3.1236728311985 × 10¹³

Factors of 31236728311985

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 2089983

Divisors of 31236728311985

• Number of divisors d(n): 48
• Complete list of divisors:
  1 5 7 35 49 139 245 439 695 973 2195 3073 4865 6811 15365 21511 34055 61021 107555 305105 427147 2089393 2135735 2990029 10446965 14625751 14950145 73128755 102380257 290425627 511901285 917243527 1452128135 2032979389 4586217635 6420704689 10164896945 14230855723 32103523445 44944932823 71154278615 127496850253 224724664115 637484251265 892477951771 4462389758855 6247345662397 31236728311985
• Sum of all divisors σ(n): 44017681276800
• Sum of proper divisors (its aliquot sum) s(n): 12780952964815
• 31236728311985 is a deficient number, because the sum of its proper divisors (12780952964815) is less than itself. Its deficiency is 18455775347170

Bases of 31236728311985

• Binary: 111000110100011011110000110000101000010110001₂
• Hexadecimal: 0x1C68DE1850B1
• Base-36: B2LYDJ0Z5

Squares and roots of 31236728311985

• 31236728311985 squared (31236728311985²) is 975733195636765267494640225
• 31236728311985 cubed (31236728311985³) is 30478712737090544501313530145499130596625
• The square root of 31236728311985 is 5588982.7618257153
• The cube root of 31236728311985 is 31493.5666082255

Scales and comparisons

• 31,236,728,311,985 seconds is equal to 993,231 years, 17 weeks, 4 days, 7 hours, 33 minutes, 5 seconds.
• To count from 1 to 31,236,728,311,985 would take you about two million, four hundred eighty-three thousand and seventy-eight 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 31236728311985 cubic inches would be around 2624.5 feet tall.

Recreational maths with 31236728311985

• 31236728311985 backwards is 58911382763213
• The number of decimal digits it has is: 14
• The sum of 31236728311985's digits is 59
• More coming soon!