138639399179594227201

Names of 138639399179594227201

• Cardinal: 138639399179594227201 can be written as One hundred thirty-eight quintillion, six hundred thirty-nine quadrillion, three hundred ninety-nine trillion, one hundred seventy-nine billion, five hundred ninety-four million, two hundred twenty-seven thousand, two hundred one.

Scientific notation

• Scientific notation: 1.38639399179594227201 × 10²⁰

Factors of 138639399179594227201

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 19805628454227746750

Divisors of 138639399179594227201

• Number of divisors d(n): 4
• Complete list of divisors:
  1 7 19805628454227746743 138639399179594227201
• Sum of all divisors σ(n): 158445027633821973952
• Sum of proper divisors (its aliquot sum) s(n): 19805628454227746751
• 138639399179594227201 is a deficient number, because the sum of its proper divisors (19805628454227746751) is less than itself. Its deficiency is 118833770725366480450

Bases of 138639399179594227201

• Binary: 1111000010000000010000101110000001011000101010010111101111000000001₂
• Hexadecimal: 0x784021702C54BDE01
• Base-36: T9BF1DNQ8DC01

Squares and roots of 138639399179594227201

• 138639399179594227201 squared (138639399179594227201²) is 19220883004878872478286270841924408294401
• 138639399179594227201 cubed (138639399179594227201³) is 2664771671497680577569304954825674434069963444291142090201601
• The square root of 138639399179594227201 is 11774523310.0790210801
• The cube root of 138639399179594227201 is 5175618.0945263475

Scales and comparisons

• 138,639,399,179,594,227,201 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,639,399,179,594,227,201 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 138639399179594227201 cubic inches would be around 431301.5 feet tall.

Recreational maths with 138639399179594227201

• 138639399179594227201 backwards is 102722495971993936831
• The number of decimal digits it has is: 21
• The sum of 138639399179594227201's digits is 100
• More coming soon!