31821812940

Names of 31821812940

• Cardinal: 31821812940 can be written as Thirty-one billion, eight hundred twenty-one million, eight hundred twelve thousand, nine hundred forty.

Scientific notation

• Scientific notation: 3.182181294 × 10¹⁰

Factors of 31821812940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 313757

Divisors of 31821812940

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 89 95 114 178 190 228 267 285 356 380 445 534 570 890 1068 1140 1335 1691 1780 2670 3382 5073 5340 6764 8455 10146 16910 20292 25365 33820 50730 101460 313639 627278 940917 1254556 1568195 1881834 3136390 3763668 4704585 5959141 6272780 9409170 11918282 17877423 18818340 23836564 27913871 29795705 35754846 55827742 59591410 71509692 83741613 89387115 111655484 119182820 139569355 167483226 178774230 279138710 334966452 357548460 418708065 530363549 558277420 837416130 1060727098 1591090647 1674832260 2121454196 2651817745 3182181294 5303635490 6364362588 7955453235 10607270980 15910906470 31821812940
• Sum of all divisors σ(n): 94844736000
• Sum of proper divisors (its aliquot sum) s(n): 63022923060
• 31821812940 is an abundant number, because the sum of its proper divisors (63022923060) is greater than itself. Its abundance is 31201110120

Bases of 31821812940

• Binary: 11101101000101110100101010011001100₂
• Hexadecimal: 0x768BA54CC
• Base-36: EM9VW0C

Squares and roots of 31821812940

• 31821812940 squared (31821812940²) is 1012627778788351443600
• 31821812940 cubed (31821812940³) is 32223651754450619489218160184000
• The square root of 31821812940 is 178386.6949634977
• The cube root of 31821812940 is 3168.8983337927

Scales and comparisons

• 31,821,812,940 seconds is equal to 1,011 years, 43 weeks, 3 days, 29 minutes.
• To count from 1 to 31,821,812,940 would take you about two thousand and twenty-three 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 31821812940 cubic inches would be around 264.1 feet tall.

Recreational maths with 31821812940

• 31821812940 backwards is 04921812813
• The number of decimal digits it has is: 11
• The sum of 31821812940's digits is 39
• More coming soon!