138881624664

Names of 138881624664

• Cardinal: 138881624664 can be written as One hundred thirty-eight billion, eight hundred eighty-one million, six hundred twenty-four thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 1.38881624664 × 10¹¹

Factors of 138881624664

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 491

Divisors of 138881624664

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 24 103 206 309 383 412 618 766 824 1149 1236 1532 2298 2472 3064 4596 9192 39449 78898 118347 146689 157796 236694 293378 315592 440067 473388 586756 880134 946776 1173512 1760268 3520536 15108967 30217934 45326901 56181887 60435868 90653802 112363774 120871736 168545661 181307604 224727548 337091322 362615208 449455096 674182644 1348365288 5786734361 11573468722 17360203083 23146937444 34720406166 46293874888 69440812332 138881624664
• Sum of all divisors σ(n): 351492710400
• Sum of proper divisors (its aliquot sum) s(n): 212611085736
• 138881624664 is an abundant number, because the sum of its proper divisors (212611085736) is greater than itself. Its abundance is 73729461072

Bases of 138881624664

• Binary: 10000001010101111111010110101001011000₂
• Hexadecimal: 0x2055FD6A58
• Base-36: 1RSUJ7FC

Squares and roots of 138881624664

• 138881624664 squared (138881624664²) is 19288105669312173112896
• 138881624664 cubed (138881624664³) is 2678763452044983729311414770066944
• The square root of 138881624664 is 372668.2501421337
• The cube root of 138881624664 is 5178.6305551395

Scales and comparisons

• 138,881,624,664 seconds is equal to 4,416 years, 2 days, 5 hours, 4 minutes, 24 seconds.
• To count from 1 to 138,881,624,664 would take you about eight thousand, eight hundred thirty-two 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 138881624664 cubic inches would be around 431.6 feet tall.

Recreational maths with 138881624664

• 138881624664 backwards is 466426188831
• The number of decimal digits it has is: 12
• The sum of 138881624664's digits is 57
• More coming soon!