138904936624

Names of 138904936624

• Cardinal: 138904936624 can be written as One hundred thirty-eight billion, nine hundred four million, nine hundred thirty-six thousand, six hundred twenty-four.

Scientific notation

• Scientific notation: 1.38904936624 × 10¹¹

Factors of 138904936624

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1062718

Divisors of 138904936624

• Number of divisors d(n): 20
• Complete list of divisors:
  1 2 4 8 16 8233 16466 32932 65864 131728 1054483 2108966 4217932 8435864 16871728 8681558539 17363117078 34726234156 69452468312 138904936624
• Sum of all divisors σ(n): 269161258936
• Sum of proper divisors (its aliquot sum) s(n): 130256322312
• 138904936624 is a deficient number, because the sum of its proper divisors (130256322312) is less than itself. Its deficiency is 8648614312

Bases of 138904936624

• Binary: 10000001010111011000010010000010110000₂
• Hexadecimal: 0x20576120B0
• Base-36: 1RT8EV1S

Squares and roots of 138904936624

• 138904936624 squared (138904936624²) is 19294581418517456517376
• 138904936624 cubed (138904936624³) is 2680112609125775317583789034778624
• The square root of 138904936624 is 372699.5259240347
• The cube root of 138904936624 is 5178.9202917515

Scales and comparisons

• 138,904,936,624 seconds is equal to 4,416 years, 38 weeks, 6 days, 37 minutes, 4 seconds.
• To count from 1 to 138,904,936,624 would take you about eight thousand, eight hundred thirty-three 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 138904936624 cubic inches would be around 431.6 feet tall.

Recreational maths with 138904936624

• 138904936624 backwards is 426639409831
• The number of decimal digits it has is: 12
• The sum of 138904936624's digits is 55
• More coming soon!