31387315212

Names of 31387315212

• Cardinal: 31387315212 can be written as Thirty-one billion, three hundred eighty-seven million, three hundred fifteen thousand, two hundred twelve.

Scientific notation

• Scientific notation: 3.1387315212 × 10¹⁰

Factors of 31387315212

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 26420315

Divisors of 31387315212

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 132 198 297 396 594 1188 26420299 52840598 79260897 105681196 158521794 237782691 290623289 317043588 475565382 581246578 713348073 871869867 951130764 1162493156 1426696146 1743739734 2615609601 2853392292 3487479468 5231219202 7846828803 10462438404 15693657606 31387315212
• Sum of all divisors σ(n): 88772208000
• Sum of proper divisors (its aliquot sum) s(n): 57384892788
• 31387315212 is an abundant number, because the sum of its proper divisors (57384892788) is greater than itself. Its abundance is 25997577576

Bases of 31387315212

• Binary: 11101001110110101000110110000001100₂
• Hexadecimal: 0x74ED46C0C
• Base-36: EF373F0

Squares and roots of 31387315212

• 31387315212 squared (31387315212²) is 985163556217446604944
• 31387315212 cubed (31387315212³) is 30921639074371879003156565608128
• The square root of 31387315212 is 177164.6556511767
• The cube root of 31387315212 is 3154.4093858373

Scales and comparisons

• 31,387,315,212 seconds is equal to 998 years, 1 week, 2 hours, 40 minutes, 12 seconds.
• To count from 1 to 31,387,315,212 would take you about one thousand, nine hundred ninety-six 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 31387315212 cubic inches would be around 262.9 feet tall.

Recreational maths with 31387315212

• 31387315212 backwards is 21251378313
• 31387315212 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31387315212's digits is 36
• More coming soon!