18631829139

Names of 18631829139

• Cardinal: 18631829139 can be written as Eighteen billion, six hundred thirty-one million, eight hundred twenty-nine thousand, one hundred thirty-nine.

Scientific notation

• Scientific notation: 1.8631829139 × 10¹⁰

Factors of 18631829139

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 808

Divisors of 18631829139

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 11 21 33 49 77 121 147 231 363 539 787 847 1331 1617 2361 2541 3993 5509 5929 8657 9317 14641 16527 17787 25971 27951 38563 43923 60599 65219 95227 102487 115689 161051 181797 195657 285681 307461 424193 483153 666589 717409 1047497 1127357 1272579 1999767 2152227 3142491 3382071 4666123 7332479 7891499 11522467 13998369 21997437 23674497 34567401 51327353 80657269 126747137 153982059 241971807 380241411 564600883 887229959 1693802649 2661689877 6210609713 18631829139
• Sum of all divisors σ(n): 31828555584
• Sum of proper divisors (its aliquot sum) s(n): 13196726445
• 18631829139 is a deficient number, because the sum of its proper divisors (13196726445) is less than itself. Its deficiency is 5435102694

Bases of 18631829139

• Binary: 10001010110100010110010011010010011₂
• Hexadecimal: 0x4568B2693
• Base-36: 8K4WRDF

Squares and roots of 18631829139

• 18631829139 squared (18631829139²) is 347145057064889481321
• 18631829139 cubed (18631829139³) is 6467947389681425651891204012619
• The square root of 18631829139 is 136498.4583759099
• The cube root of 18631829139 is 2651.0535333507

Scales and comparisons

• 18,631,829,139 seconds is equal to 592 years, 22 weeks, 4 days, 4 hours, 5 minutes, 39 seconds.
• To count from 1 to 18,631,829,139 would take you about one thousand, one hundred eighty-four 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 18631829139 cubic inches would be around 220.9 feet tall.

Recreational maths with 18631829139

• 18631829139 backwards is 93192813681
• The number of decimal digits it has is: 11
• The sum of 18631829139's digits is 51
• More coming soon!