138506079439

Names of 138506079439

• Cardinal: 138506079439 can be written as One hundred thirty-eight billion, five hundred six million, seventy-nine thousand, four hundred thirty-nine.

Scientific notation

• Scientific notation: 1.38506079439 × 10¹¹

Factors of 138506079439

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1325

Divisors of 138506079439

• Number of divisors d(n): 48
• Complete list of divisors:
  1 7 13 67 91 409 469 829 871 2863 4489 5317 5803 6097 10777 27403 31423 37219 55543 58357 75439 191821 339061 356239 388801 408499 722059 1836001 2373427 2493673 3721381 4407793 5054413 12852007 22717087 23868013 26049667 30854551 48377953 159019609 167076091 295322131 338645671 1522044829 2067254917 10654313803 19786582777 138506079439
• Sum of all divisors σ(n): 173683675200
• Sum of proper divisors (its aliquot sum) s(n): 35177595761
• 138506079439 is a deficient number, because the sum of its proper divisors (35177595761) is less than itself. Its deficiency is 103328483678

Bases of 138506079439

• Binary: 10000000111111100110110000110011001111₂
• Hexadecimal: 0x203F9B0CCF
• Base-36: 1RMMXYVJ

Squares and roots of 138506079439

• 138506079439 squared (138506079439²) is 19183934041562578554721
• 138506079439 cubed (138506079439³) is 2657091492313202832989864634481519
• The square root of 138506079439 is 372164.0490952879
• The cube root of 138506079439 is 5173.9585533889

Scales and comparisons

• 138,506,079,439 seconds is equal to 4,404 years, 3 weeks, 2 days, 14 hours, 57 minutes, 19 seconds.
• To count from 1 to 138,506,079,439 would take you about eight thousand, eight hundred eight 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 138506079439 cubic inches would be around 431.2 feet tall.

Recreational maths with 138506079439

• 138506079439 backwards is 934970605831
• The number of decimal digits it has is: 12
• The sum of 138506079439's digits is 55
• More coming soon!