21321680288812800

21,321,680,288,812,800 is an even composite number composed of seven prime numbers multiplied together.

What does the number 21321680288812800 look like?

This visualization shows the relationship between its 7 prime factors (large circles) and 5184 divisors.

21321680288812800 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of five thousand, one hundred eighty-four divisors.

Prime factorization of 21321680288812800:

28 × 3 × 52 × 133 × 192 × 313 × 47

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 13 × 13 × 13 × 19 × 19 × 31 × 31 × 31 × 47)

See below for interesting mathematical facts about the number 21321680288812800 from the Numbermatics database.


Names of 21321680288812800

  • Cardinal: 21321680288812800 can be written as Twenty-one quadrillion, three hundred twenty-one trillion, six hundred eighty billion, two hundred eighty-eight million, eight hundred twelve thousand, eight hundred.

Scientific notation

  • Scientific notation: 2.13216802888128 × 1016

Factors of 21321680288812800

  • Number of distinct prime factors ω(n): 7
  • Total number of prime factors Ω(n): 20
  • Sum of prime factors: 120

Divisors of 21321680288812800

Bases of 21321680288812800

  • Binary: 10010111011111111110100100010111010000100001111000000002
  • Hexadecimal: 0x4BBFF48BA10F00
  • Base-36: 5TXWKPAHKAO

Squares and roots of 21321680288812800

  • 21321680288812800 squared (213216802888128002) is 454614050338348286420833443840000
  • 21321680288812800 cubed (213216802888128003) is 9693135436116510689172671999257336449073152000000
  • The square root of 21321680288812800 is 146019451.7480900557
  • The cube root of 21321680288812800 is 277294.0019815015

Scales and comparisons

How big is 21321680288812800?
  • 21,321,680,288,812,800 seconds is equal to 677,963,480 years, 46 weeks, 4 days, 10 hours, 40 minutes.
  • To count from 1 to 21,321,680,288,812,800 would take you about two billion, thirty-three million, eight hundred ninety thousand, four hundred forty-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 21321680288812800 cubic inches would be around 23107.8 feet tall.

Recreational maths with 21321680288812800

  • 21321680288812800 backwards is 00821888208612312
  • 21321680288812800 is a Harshad number.
  • The number of decimal digits it has is: 17
  • The sum of 21321680288812800's digits is 60
  • More coming soon!

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"Number 21321680288812800 - Facts about the integer". Numbermatics.com. 2024. Web. 27 May 2024.

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Numbermatics. (2024). Number 21321680288812800 - Facts about the integer. Retrieved 27 May 2024, from https://numbermatics.com/n/21321680288812800/

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Numbermatics. 2024. "Number 21321680288812800 - Facts about the integer". https://numbermatics.com/n/21321680288812800/

The information we have on file for 21321680288812800 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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