31381533378

Names of 31381533378

• Cardinal: 31381533378 can be written as Thirty-one billion, three hundred eighty-one million, five hundred thirty-three thousand, three hundred seventy-eight.

Scientific notation

• Scientific notation: 3.1381533378 × 10¹⁰

Factors of 31381533378

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 41884

Divisors of 31381533378

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 6 9 13 18 26 27 39 54 78 81 117 162 234 351 359 702 718 1053 1077 2106 2154 3231 4667 6462 9334 9693 14001 19386 28002 29079 41507 42003 58158 83014 84006 124521 126009 249042 252018 373563 378027 539591 747126 756054 1079182 1120689 1618773 2241378 3237546 3362067 4856319 6724134 9712638 14568957 14901013 29137914 29802026 43706871 44703039 87413742 89406078 134109117 193713169 268218234 387426338 402327351 581139507 804654702 1162279014 1206982053 1743418521 2413964106 3486837042 5230255563 10460511126 15690766689 31381533378
• Sum of all divisors σ(n): 75939716160
• Sum of proper divisors (its aliquot sum) s(n): 44558182782
• 31381533378 is an abundant number, because the sum of its proper divisors (44558182782) is greater than itself. Its abundance is 13176649404

Bases of 31381533378

• Binary: 11101001110011111000011001011000010₂
• Hexadecimal: 0x74E7C32C2
• Base-36: EEZR64I

Squares and roots of 31381533378

• 31381533378 squared (31381533378²) is 984800637154528090884
• 31381533378 cubed (31381533378³) is 30904554065540490227914863526152
• The square root of 31381533378 is 177148.3372148891
• The cube root of 31381533378 is 3154.2156834735

Scales and comparisons

• 31,381,533,378 seconds is equal to 997 years, 43 weeks, 3 days, 4 hours, 36 minutes, 18 seconds.
• To count from 1 to 31,381,533,378 would take you about one thousand, nine hundred ninety-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 31381533378 cubic inches would be around 262.9 feet tall.

Recreational maths with 31381533378

• 31381533378 backwards is 87333518313
• The number of decimal digits it has is: 11
• The sum of 31381533378's digits is 45
• More coming soon!