18121137828808618800

18,121,137,828,808,618,800 is an even composite number composed of eight prime numbers multiplied together.

What does the number 18121137828808618800 look like?

This visualization shows the relationship between its 8 prime factors (large circles) and 8100 divisors.

18121137828808618800 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of eight thousand, one hundred divisors.

Prime factorization of 18121137828808618800:

24 × 32 × 52 × 72 × 194 × 31 × 37 × 8292

(2 × 2 × 2 × 2 × 3 × 3 × 5 × 5 × 7 × 7 × 19 × 19 × 19 × 19 × 31 × 37 × 829 × 829)

See below for interesting mathematical facts about the number 18121137828808618800 from the Numbermatics database.


Names of 18121137828808618800

  • Cardinal: 18121137828808618800 can be written as Eighteen quintillion, one hundred twenty-one quadrillion, one hundred thirty-seven trillion, eight hundred twenty-eight billion, eight hundred eight million, six hundred eighteen thousand, eight hundred.

Scientific notation

  • Scientific notation: 1.81211378288086188 × 1019

Factors of 18121137828808618800

  • Number of distinct prime factors ω(n): 8
  • Total number of prime factors Ω(n): 18
  • Sum of prime factors: 933

Divisors of 18121137828808618800

Bases of 18121137828808618800

  • Binary: 11111011011110110011011011011000011011000000011111110011001100002
  • Hexadecimal: 0xFB7B36D86C07F330
  • Base-36: 3TOBZ8Y9AVZG0

Squares and roots of 18121137828808618800

  • 18121137828808618800 squared (181211378288086188002) is 328375636210678743034877797163713440000
  • 18121137828808618800 cubed (181211378288086188003) is 5950540163396427860866731165919049969025173685396672000000
  • The square root of 18121137828808618800 is 4256892978.3127762819
  • The cube root of 18121137828808618800 is 2626607.3459283975

Scales and comparisons

How big is 18121137828808618800?
  • 18,121,137,828,808,618,800 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
  • To count from 1 to 18,121,137,828,808,618,800 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 18121137828808618800 cubic inches would be around 218883.9 feet tall.

Recreational maths with 18121137828808618800

  • 18121137828808618800 backwards is 00881680882873112181
  • The number of decimal digits it has is: 20
  • The sum of 18121137828808618800's digits is 81
  • More coming soon!

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"Number 18121137828808618800 - Facts about the integer". Numbermatics.com. 2024. Web. 7 June 2024.

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Numbermatics. (2024). Number 18121137828808618800 - Facts about the integer. Retrieved 7 June 2024, from https://numbermatics.com/n/18121137828808618800/

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Numbermatics. 2024. "Number 18121137828808618800 - Facts about the integer". https://numbermatics.com/n/18121137828808618800/

The information we have on file for 18121137828808618800 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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