138849739818

Names of 138849739818

• Cardinal: 138849739818 can be written as One hundred thirty-eight billion, eight hundred forty-nine million, seven hundred thirty-nine thousand, eight hundred eighteen.

Scientific notation

• Scientific notation: 1.38849739818 × 10¹¹

Factors of 138849739818

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 7543

Divisors of 138849739818

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 17 34 51 102 131 262 393 786 1889 2227 3778 4454 5501 5667 6681 11002 11334 13362 16503 32113 33006 64226 93517 96339 187034 192678 247459 280551 494918 561102 720631 742377 1441262 1484754 2161893 4206803 4323786 8413606 10391389 12250727 12620409 20782778 24501454 25240818 31174167 36752181 62348334 73504362 176653613 353307226 529960839 1059921678 1361271959 2722543918 4083815877 8167631754 23141623303 46283246606 69424869909 138849739818
• Sum of all divisors σ(n): 296490015360
• Sum of proper divisors (its aliquot sum) s(n): 157640275542
• 138849739818 is an abundant number, because the sum of its proper divisors (157640275542) is greater than itself. Its abundance is 18790535724

Bases of 138849739818

• Binary: 10000001010100000101101110010000101010₂
• Hexadecimal: 0x205416E42A
• Base-36: 1RSBJSX6

Squares and roots of 138849739818

• 138849739818 squared (138849739818²) is 19279250247526294673124
• 138849739818 cubed (138849739818³) is 2676918880755138113476866757251432
• The square root of 138849739818 is 372625.4685579073
• The cube root of 138849739818 is 5178.2342164687

Scales and comparisons

• 138,849,739,818 seconds is equal to 4,414 years, 51 weeks, 4 days, 4 hours, 10 minutes, 18 seconds.
• To count from 1 to 138,849,739,818 would take you about eight thousand, eight hundred twenty-nine 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 138849739818 cubic inches would be around 431.5 feet tall.

Recreational maths with 138849739818

• 138849739818 backwards is 818937948831
• The number of decimal digits it has is: 12
• The sum of 138849739818's digits is 69
• More coming soon!