138419255907

Names of 138419255907

• Cardinal: 138419255907 can be written as One hundred thirty-eight billion, four hundred nineteen million, two hundred fifty-five thousand, nine hundred seven.

Scientific notation

• Scientific notation: 1.38419255907 × 10¹¹

Factors of 138419255907

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2186

Divisors of 138419255907

• Number of divisors d(n): 54
• Complete list of divisors:
  1 3 9 17 51 153 163 289 489 867 1467 2003 2601 2771 6009 8313 18027 24939 26569 34051 47107 79707 102153 141321 239121 306459 326489 423963 451673 578867 979467 1355019 1736601 2938401 4065057 5209803 5550313 7678441 16650939 23035323 49952817 53217707 69105969 94355321 159653121 283065963 478959363 849197889 904701019 2714103057 8142309171 15379917323 46139751969 138419255907
• Sum of all divisors σ(n): 213809571612
• Sum of proper divisors (its aliquot sum) s(n): 75390315705
• 138419255907 is a deficient number, because the sum of its proper divisors (75390315705) is less than itself. Its deficiency is 63028940202

Bases of 138419255907

• Binary: 10000000111010011011100011101001100011₂
• Hexadecimal: 0x203A6E3A63
• Base-36: 1RL791ER

Squares and roots of 138419255907

• 138419255907 squared (138419255907²) is 19159890405847554392649
• 138419255907 cubed (138419255907³) is 2652097773237086720706183890627643
• The square root of 138419255907 is 372047.3839539797
• The cube root of 138419255907 is 5172.8772163663

Scales and comparisons

• 138,419,255,907 seconds is equal to 4,401 years, 15 weeks, 5 days, 17 hours, 18 minutes, 27 seconds.
• To count from 1 to 138,419,255,907 would take you about eight thousand, eight hundred 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 138419255907 cubic inches would be around 431.1 feet tall.

Recreational maths with 138419255907

• 138419255907 backwards is 709552914831
• The number of decimal digits it has is: 12
• The sum of 138419255907's digits is 54
• More coming soon!