138726888489

Names of 138726888489

• Cardinal: 138726888489 can be written as One hundred thirty-eight billion, seven hundred twenty-six million, eight hundred eighty-eight thousand, four hundred eighty-nine.

Scientific notation

• Scientific notation: 1.38726888489 × 10¹¹

Factors of 138726888489

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 10613

Divisors of 138726888489

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 9 21 27 31 63 93 189 217 279 651 837 1953 3221 5859 7351 9663 22053 22547 28989 51457 66159 67641 86967 99851 154371 198477 202923 227881 299553 463113 608769 683643 698957 898659 1389339 1595167 2050929 2096871 2695977 4785501 6152787 6290613 14356503 18871839 23677571 43069509 71032713 165742997 213098139 497228991 639294417 734004701 1491686973 2202014103 4475060919 5138032907 6606042309 15414098721 19818126927 46242296163 138726888489
• Sum of all divisors σ(n): 242566594560
• Sum of proper divisors (its aliquot sum) s(n): 103839706071
• 138726888489 is a deficient number, because the sum of its proper divisors (103839706071) is less than itself. Its deficiency is 34887182418

Bases of 138726888489

• Binary: 10000001001100110001000101010000101001₂
• Hexadecimal: 0x204CC45429
• Base-36: 1RQAEO89

Squares and roots of 138726888489

• 138726888489 squared (138726888489²) is 19245149589839440703121
• 138726888489 cubed (138726888489³) is 2669819721103780177835994721274169
• The square root of 138726888489 is 372460.5864907051
• The cube root of 138726888489 is 5176.7065682673

Scales and comparisons

• 138,726,888,489 seconds is equal to 4,411 years, 4 weeks, 3 days, 6 hours, 48 minutes, 9 seconds.
• To count from 1 to 138,726,888,489 would take you about eight thousand, eight hundred twenty-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 138726888489 cubic inches would be around 431.4 feet tall.

Recreational maths with 138726888489

• 138726888489 backwards is 984888627831
• The number of decimal digits it has is: 12
• The sum of 138726888489's digits is 72
• More coming soon!