31427781814

Names of 31427781814

• Cardinal: 31427781814 can be written as Thirty-one billion, four hundred twenty-seven million, seven hundred eighty-one thousand, eight hundred fourteen.

Scientific notation

• Scientific notation: 3.1427781814 × 10¹⁰

Factors of 31427781814

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4573

Divisors of 31427781814

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 11 13 22 26 121 143 169 242 286 338 1573 1859 2197 3146 3718 4394 4547 9094 20449 24167 28561 40898 48334 50017 57122 59111 100034 118222 265837 314171 531674 550187 628342 650221 768443 1100374 1300442 1536886 3455881 6911762 7152431 8452873 9989759 14304862 16905746 19979518 92981603 109887349 129866867 185963206 219774698 259733734 1208760839 1428535537 2417521678 2857071074 15713890907 31427781814
• Sum of all divisors σ(n): 56147147532
• Sum of proper divisors (its aliquot sum) s(n): 24719365718
• 31427781814 is a deficient number, because the sum of its proper divisors (24719365718) is less than itself. Its deficiency is 6708416096

Bases of 31427781814

• Binary: 11101010001001111011110010010110110₂
• Hexadecimal: 0x7513DE4B6
• Base-36: EFRAFNA

Squares and roots of 31427781814

• 31427781814 squared (31427781814²) is 987705469748389130596
• 31427781814 cubed (31427781814³) is 31041391999746751074340239781144
• The square root of 31427781814 is 177278.8250581553
• The cube root of 31427781814 is 3155.7644280473

Scales and comparisons

• 31,427,781,814 seconds is equal to 999 years, 15 weeks, 6 days, 11 hours, 23 minutes, 34 seconds.
• To count from 1 to 31,427,781,814 would take you about one thousand, nine hundred ninety-eight 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 31427781814 cubic inches would be around 263 feet tall.

Recreational maths with 31427781814

• 31427781814 backwards is 41818772413
• The number of decimal digits it has is: 11
• The sum of 31427781814's digits is 46
• More coming soon!