31857998144

Names of 31857998144

• Cardinal: 31857998144 can be written as Thirty-one billion, eight hundred fifty-seven million, nine hundred ninety-eight thousand, one hundred forty-four.

Scientific notation

• Scientific notation: 3.1857998144 × 10¹⁰

Factors of 31857998144

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 174285

Divisors of 31857998144

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 56 64 112 224 409 448 818 1636 2863 3272 5726 6544 11452 13088 22904 26176 45808 91616 173867 183232 347734 695468 1217069 1390936 2434138 2781872 4868276 5563744 9736552 11127488 19473104 38946208 71111603 77892416 142223206 284446412 497781221 568892824 995562442 1137785648 1991124884 2275571296 3982249768 4551142592 7964499536 15928999072 31857998144
• Sum of all divisors σ(n): 72426454080
• Sum of proper divisors (its aliquot sum) s(n): 40568455936
• 31857998144 is an abundant number, because the sum of its proper divisors (40568455936) is greater than itself. Its abundance is 8710457792

Bases of 31857998144

• Binary: 11101101010111000100111100101000000₂
• Hexadecimal: 0x76AE27940
• Base-36: EMVFGOW

Squares and roots of 31857998144

• 31857998144 squared (31857998144²) is 1014932045743107444736
• 31857998144 cubed (31857998144³) is 32333703229570040075192070569984
• The square root of 31857998144 is 178488.0896418581
• The cube root of 31857998144 is 3170.0990174963

Scales and comparisons

• 31,857,998,144 seconds is equal to 1,012 years, 51 weeks, 1 day, 19 hours, 55 minutes, 44 seconds.
• To count from 1 to 31,857,998,144 would take you about two thousand and twenty-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 31857998144 cubic inches would be around 264.2 feet tall.

Recreational maths with 31857998144

• 31857998144 backwards is 44189975813
• The number of decimal digits it has is: 11
• The sum of 31857998144's digits is 59
• More coming soon!