138406691688481658817921

138,406,691,688,481,658,817,921 is an odd composite number composed of ten prime numbers multiplied together.

What does the number 138406691688481658817921 look like?

This visualization shows the relationship between its 10 prime factors (large circles) and 2048 divisors.

138406691688481658817921 is an odd composite number. It is composed of ten distinct prime numbers multiplied together. It has a total of two thousand and forty-eight divisors.

Prime factorization of 138406691688481658817921:

3 × 73 × 13 × 31 × 67 × 73 × 79 × 30941 × 2801 × 9967

(3 × 7 × 7 × 7 × 13 × 31 × 67 × 73 × 79 × 30941 × 2801 × 9967)

See below for interesting mathematical facts about the number 138406691688481658817921 from the Numbermatics database.


Names of 138406691688481658817921

  • Cardinal: 138406691688481658817921 can be written as One hundred thirty-eight sextillion, four hundred six quintillion, six hundred ninety-one quadrillion, six hundred eighty-eight trillion, four hundred eighty-one billion, six hundred fifty-eight million, eight hundred seventeen thousand, nine hundred twenty-one.

Scientific notation

  • Scientific notation: 1.38406691688481658817921 × 1023

Factors of 138406691688481658817921

  • Number of distinct prime factors ω(n): 10
  • Total number of prime factors Ω(n): 12
  • Sum of prime factors: 43982

Divisors of 138406691688481658817921

Bases of 138406691688481658817921

  • Binary: 111010100111100001010101100101100110010010111110111110101100011001101100000012
  • Hexadecimal: 0x1D4F0AB2CC97DF58CD81
  • Base-36: MJDP5N6FYZOU2RL

Squares and roots of 138406691688481658817921

  • 138406691688481658817921 squared (1384066916884816588179212) is 19156412304150417896365828747498177055030762241
  • 138406691688481658817921 cubed (1384066916884816588179213) is 2651375651637983427464687185319729121553976010792147434715291660920961
  • The square root of 138406691688481658817921 is 372030498331.0933593249
  • The cube root of 138406691688481658817921 is 51727206.9882147887

Scales and comparisons

How big is 138406691688481658817921?
  • 138,406,691,688,481,658,817,921 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
  • To count from 1 to 138,406,691,688,481,658,817,921 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 138406691688481658817921 cubic inches would be around 4310600.6 feet tall.

Recreational maths with 138406691688481658817921

  • 138406691688481658817921 backwards is 129718856184886196604831
  • The number of decimal digits it has is: 24
  • The sum of 138406691688481658817921's digits is 120
  • More coming soon!

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"Number 138406691688481658817921 - Facts about the integer". Numbermatics.com. 2024. Web. 14 June 2024.

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The information we have on file for 138406691688481658817921 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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