31885143928

Names of 31885143928

• Cardinal: 31885143928 can be written as Thirty-one billion, eight hundred eighty-five million, one hundred forty-three thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 3.1885143928 × 10¹⁰

Factors of 31885143928

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 507

Divisors of 31885143928

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 11 22 44 88 97 194 388 397 776 794 1067 1588 2134 3176 4268 4367 8536 8734 9409 17468 18818 34936 37636 38509 75272 77018 103499 154036 206998 308072 413996 423599 827992 847198 912673 1694396 1825346 3388792 3650692 3735373 7301384 7470746 10039403 14941492 20078806 29882984 40157612 41089103 80315224 82178206 164356412 328712824 362331181 724662362 1449324724 2898649448 3985642991 7971285982 15942571964 31885143928
• Sum of all divisors σ(n): 66064975200
• Sum of proper divisors (its aliquot sum) s(n): 34179831272
• 31885143928 is an abundant number, because the sum of its proper divisors (34179831272) is greater than itself. Its abundance is 2294687344

Bases of 31885143928

• Binary: 11101101100100000001010111101111000₂
• Hexadecimal: 0x76C80AF78
• Base-36: ENBLAIG

Squares and roots of 31885143928

• 31885143928 squared (31885143928²) is 1016662403309275269184
• 31885143928 cubed (31885143928³) is 32416427055702625455302783114752
• The square root of 31885143928 is 178564.1171344343
• The cube root of 31885143928 is 3170.9991618631

Scales and comparisons

• 31,885,143,928 seconds is equal to 1,013 years, 44 weeks, 1 day, 25 minutes, 28 seconds.
• To count from 1 to 31,885,143,928 would take you about two thousand and twenty-seven 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 31885143928 cubic inches would be around 264.2 feet tall.

Recreational maths with 31885143928

• 31885143928 backwards is 82934158813
• The number of decimal digits it has is: 11
• The sum of 31885143928's digits is 52
• More coming soon!