139491818840

Names of 139491818840

• Cardinal: 139491818840 can be written as One hundred thirty-nine billion, four hundred ninety-one million, eight hundred eighteen thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.3949181884 × 10¹¹

Factors of 139491818840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 52768

Divisors of 139491818840

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 6917 13834 27668 34585 45833 55336 69170 76087 91666 138340 152174 183332 229165 276680 304348 366664 380435 458330 504163 608696 760870 916660 1008326 1521740 1833320 2016652 2520815 3043480 4033304 5041630 10083260 20166520 317026861 634053722 1268107444 1585134305 2536214888 3170268610 3487295471 6340537220 6974590942 12681074440 13949181884 17436477355 27898363768 34872954710 69745909420 139491818840
• Sum of all divisors σ(n): 342445980960
• Sum of proper divisors (its aliquot sum) s(n): 202954162120
• 139491818840 is an abundant number, because the sum of its proper divisors (202954162120) is greater than itself. Its abundance is 63462343280

Bases of 139491818840

• Binary: 10000001111010010111000011110101011000₂
• Hexadecimal: 0x207A5C3D58
• Base-36: 1S2XTS9K

Squares and roots of 139491818840

• 139491818840 squared (139491818840²) is 19457967523291378945600
• 139491818840 cubed (139491818840³) is 2714227280753564512413425415104000
• The square root of 139491818840 is 373486.0356693407
• The cube root of 139491818840 is 5186.2037997745

Scales and comparisons

• 139,491,818,840 seconds is equal to 4,435 years, 21 weeks, 1 day, 15 hours, 27 minutes, 20 seconds.
• To count from 1 to 139,491,818,840 would take you about eight thousand, eight hundred seventy 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 139491818840 cubic inches would be around 432.2 feet tall.

Recreational maths with 139491818840

• 139491818840 backwards is 048818194931
• The number of decimal digits it has is: 12
• The sum of 139491818840's digits is 56
• More coming soon!