21018829097120400

21,018,829,097,120,400 is an even composite number composed of nine prime numbers multiplied together.

What does the number 21018829097120400 look like?

This visualization shows the relationship between its 9 prime factors (large circles) and 13440 divisors.

21018829097120400 is an even composite number. It is composed of nine distinct prime numbers multiplied together. It has a total of thirteen thousand, four hundred forty divisors.

Prime factorization of 21018829097120400:

24 × 36 × 52 × 73 × 13 × 31 × 43 × 67 × 181

(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 7 × 7 × 7 × 13 × 31 × 43 × 67 × 181)

See below for interesting mathematical facts about the number 21018829097120400 from the Numbermatics database.


Names of 21018829097120400

  • Cardinal: 21018829097120400 can be written as Twenty-one quadrillion, eighteen trillion, eight hundred twenty-nine billion, ninety-seven million, one hundred twenty thousand, four hundred.

Scientific notation

  • Scientific notation: 2.10188290971204 × 1016

Factors of 21018829097120400

  • Number of distinct prime factors ω(n): 9
  • Total number of prime factors Ω(n): 20
  • Sum of prime factors: 352

Divisors of 21018829097120400

Bases of 21018829097120400

  • Binary: 10010101010110010000011100000011110110110110010100100002
  • Hexadecimal: 0x4AAC8381EDB290
  • Base-36: 5QYJWSAC900

Squares and roots of 21018829097120400

  • 21018829097120400 squared (210188290971204002) is 441791176613955169455572096160000
  • 21018829097120400 cubed (210188290971204003) is 9285933237864458509670664625951540847897664000000
  • The square root of 21018829097120400 is 144978719.4629625635
  • The cube root of 21018829097120400 is 275974.8502302443

Scales and comparisons

How big is 21018829097120400?
  • 21,018,829,097,120,400 seconds is equal to 668,333,749 years, 40 weeks, 4 days, 9 hours.
  • To count from 1 to 21,018,829,097,120,400 would take you about two billion, five million, one thousand, two hundred forty-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 21018829097120400 cubic inches would be around 22997.9 feet tall.

Recreational maths with 21018829097120400

  • 21018829097120400 backwards is 00402179092881012
  • 21018829097120400 is a Harshad number.
  • The number of decimal digits it has is: 17
  • The sum of 21018829097120400's digits is 54
  • More coming soon!

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"Number 21018829097120400 - Facts about the integer". Numbermatics.com. 2024. Web. 17 June 2024.

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Numbermatics. (2024). Number 21018829097120400 - Facts about the integer. Retrieved 17 June 2024, from https://numbermatics.com/n/21018829097120400/

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Numbermatics. 2024. "Number 21018829097120400 - Facts about the integer". https://numbermatics.com/n/21018829097120400/

The information we have on file for 21018829097120400 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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