138690866340

Names of 138690866340

• Cardinal: 138690866340 can be written as One hundred thirty-eight billion, six hundred ninety million, eight hundred sixty-six thousand, three hundred forty.

Scientific notation

• Scientific notation: 1.3869086634 × 10¹¹

Factors of 138690866340

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 59269624

Divisors of 138690866340

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 234 260 390 468 585 780 1170 2340 59269601 118539202 177808803 237078404 296348005 355617606 533426409 592696010 711235212 770504813 889044015 1066852818 1185392020 1541009626 1778088030 2133705636 2311514439 2667132045 3082019252 3556176060 3852524065 4623028878 5334264090 6934543317 7705048130 9246057756 10668528180 11557572195 13869086634 15410096260 23115144390 27738173268 34672716585 46230288780 69345433170 138690866340
• Sum of all divisors σ(n): 453056837688
• Sum of proper divisors (its aliquot sum) s(n): 314365971348
• 138690866340 is an abundant number, because the sum of its proper divisors (314365971348) is greater than itself. Its abundance is 175675105008

Bases of 138690866340

• Binary: 10000001001010100111101010110010100100₂
• Hexadecimal: 0x204A9EACA4
• Base-36: 1RPOYLD0

Squares and roots of 138690866340

• 138690866340 squared (138690866340²) is 19235156406139744995600
• 138690866340 cubed (138690866340³) is 2667740506152922128546443488104000
• The square root of 138690866340 is 372412.2263567619
• The cube root of 138690866340 is 5176.2584642263

Scales and comparisons

• 138,690,866,340 seconds is equal to 4,409 years, 48 weeks, 6 days, 8 hours, 39 minutes.
• To count from 1 to 138,690,866,340 would take you about eight thousand, eight hundred nineteen 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 138690866340 cubic inches would be around 431.4 feet tall.

Recreational maths with 138690866340

• 138690866340 backwards is 043668096831
• The number of decimal digits it has is: 12
• The sum of 138690866340's digits is 54
• More coming soon!