81420831990820800

81,420,831,990,820,800 is an even composite number composed of seven prime numbers multiplied together.

What does the number 81420831990820800 look like?

This visualization shows the relationship between its 7 prime factors (large circles) and 8316 divisors.

81420831990820800 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of eight thousand, three hundred sixteen divisors.

Prime factorization of 81420831990820800:

26 × 310 × 52 × 172 × 29 × 312 × 107

(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 17 × 17 × 29 × 31 × 31 × 107)

See below for interesting mathematical facts about the number 81420831990820800 from the Numbermatics database.


Names of 81420831990820800

  • Cardinal: 81420831990820800 can be written as Eighty-one quadrillion, four hundred twenty trillion, eight hundred thirty-one billion, nine hundred ninety million, eight hundred twenty thousand, eight hundred.

Scientific notation

  • Scientific notation: 8.14208319908208 × 1016

Factors of 81420831990820800

  • Number of distinct prime factors ω(n): 7
  • Total number of prime factors Ω(n): 24
  • Sum of prime factors: 194

Divisors of 81420831990820800

Bases of 81420831990820800

  • Binary: 1001000010100001111010000101110000010000100101111110000002
  • Hexadecimal: 0x12143D0B8212FC0
  • Base-36: M9P9XUFR000

Squares and roots of 81420831990820800

  • 81420831990820800 squared (814208319908208002) is 6629351882077467797895457712640000
  • 81420831990820800 cubed (814208319908208003) is 539767345798661169761890523573523731044134912000000
  • The square root of 81420831990820800 is 285343358.0632652469
  • The cube root of 81420831990820800 is 433422.8916637993

Scales and comparisons

How big is 81420831990820800?
  • 81,420,831,990,820,800 seconds is equal to 2,588,930,606 years, 7 weeks, 1 day, 12 hours.
  • To count from 1 to 81,420,831,990,820,800 would take you about seven billion, seven hundred sixty-six million, seven hundred ninety-one thousand, eight hundred eighteen 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 81420831990820800 cubic inches would be around 36118.6 feet tall.

Recreational maths with 81420831990820800

  • 81420831990820800 backwards is 00802809913802418
  • The number of decimal digits it has is: 17
  • The sum of 81420831990820800's digits is 63
  • More coming soon!

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"Number 81420831990820800 - Facts about the integer". Numbermatics.com. 2024. Web. 28 June 2024.

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Numbermatics. (2024). Number 81420831990820800 - Facts about the integer. Retrieved 28 June 2024, from https://numbermatics.com/n/81420831990820800/

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Numbermatics. 2024. "Number 81420831990820800 - Facts about the integer". https://numbermatics.com/n/81420831990820800/

The information we have on file for 81420831990820800 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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