31391107405047

Names of 31391107405047

• Cardinal: 31391107405047 can be written as Thirty-one trillion, three hundred ninety-one billion, one hundred seven million, four hundred five thousand and forty-seven.

Scientific notation

• Scientific notation: 3.1391107405047 × 10¹³

Factors of 31391107405047

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 227

Divisors of 31391107405047

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 13 39 117 169 211 507 633 1521 1899 2197 2743 6591 8229 19773 24687 28561 35659 44521 85683 106977 133563 257049 320931 371293 400689 463567 578773 1113879 1390701 1736319 3341637 4172103 5208957 6026371 7524049 9393931 18079113 22572147 28181793 54237339 67716441 78342823 84545379 97812637 122121103 235028469 293437911 366363309 705085407 880313733 1099089927 1271564281 1587574339 3814692843 4762723017 11444078529 14288169051 16530335653 20638466407 49591006959 61915399221 148773020877 185746197663 268300063291 804900189873 2414700569619 3487900822783 10463702468349 31391107405047
• Sum of all divisors σ(n): 49355170479888
• Sum of proper divisors (its aliquot sum) s(n): 17964063074841
• 31391107405047 is a deficient number, because the sum of its proper divisors (17964063074841) is less than itself. Its deficiency is 13427044330206

Bases of 31391107405047

• Binary: 111001000110011001111110011100101010011110111₂
• Hexadecimal: 0x1C8CCFCE54F7
• Base-36: B4KVIURJR

Squares and roots of 31391107405047

• 31391107405047 squared (31391107405047²) is 985401624115196598121072209
• 31391107405047 cubed (31391107405047³) is 30932848219707888380642613146591298038823
• The square root of 31391107405047 is 5602776.7584517413
• The cube root of 31391107405047 is 31545.3641855245

Scales and comparisons

• 31,391,107,405,047 seconds is equal to 998,140 years, 6 weeks, 8 hours, 57 minutes, 27 seconds.
• To count from 1 to 31,391,107,405,047 would take you about two million, four hundred ninety-five thousand, three hundred fifty 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 31391107405047 cubic inches would be around 2628.8 feet tall.

Recreational maths with 31391107405047

• 31391107405047 backwards is 74050470119313
• The number of decimal digits it has is: 14
• The sum of 31391107405047's digits is 45
• More coming soon!