81720221428137600

81,720,221,428,137,600 is an even composite number composed of seven prime numbers multiplied together.

What does the number 81720221428137600 look like?

This visualization shows the relationship between its 7 prime factors (large circles) and 10080 divisors.

81720221428137600 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of ten thousand and eighty divisors.

Prime factorization of 81720221428137600:

27 × 36 × 52 × 72 × 11 × 23 × 414

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 7 × 7 × 11 × 23 × 41 × 41 × 41 × 41)

See below for interesting mathematical facts about the number 81720221428137600 from the Numbermatics database.


Names of 81720221428137600

  • Cardinal: 81720221428137600 can be written as Eighty-one quadrillion, seven hundred twenty trillion, two hundred twenty-one billion, four hundred twenty-eight million, one hundred thirty-seven thousand, six hundred.

Scientific notation

  • Scientific notation: 8.17202214281376 × 1016

Factors of 81720221428137600

  • Number of distinct prime factors ω(n): 7
  • Total number of prime factors Ω(n): 23
  • Sum of prime factors: 92

Divisors of 81720221428137600

Bases of 81720221428137600

  • Binary: 1001000100101010000011011110000010011000010111110100000002
  • Hexadecimal: 0x122541BC130BE80
  • Base-36: MCNEFGCQ000

Squares and roots of 81720221428137600

  • 81720221428137600 squared (817202214281376002) is 6678194590263839764121004533760000
  • 81720221428137600 cubed (817202214281376003) is 545743540656551638041100084636202151633125376000000
  • The square root of 81720221428137600 is 285867489.2815508671
  • The cube root of 81720221428137600 is 433953.4827859727

Scales and comparisons

How big is 81720221428137600?
  • 81,720,221,428,137,600 seconds is equal to 2,598,450,264 years, 9 weeks.
  • To count from 1 to 81,720,221,428,137,600 would take you about seven billion, seven hundred ninety-five million, three hundred fifty thousand, seven hundred ninety-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 81720221428137600 cubic inches would be around 36162.8 feet tall.

Recreational maths with 81720221428137600

  • 81720221428137600 backwards is 00673182412202718
  • 81720221428137600 is a Harshad number.
  • The number of decimal digits it has is: 17
  • The sum of 81720221428137600's digits is 54
  • More coming soon!

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"Number 81720221428137600 - Facts about the integer". Numbermatics.com. 2024. Web. 31 May 2024.

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Numbermatics. (2024). Number 81720221428137600 - Facts about the integer. Retrieved 31 May 2024, from https://numbermatics.com/n/81720221428137600/

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Numbermatics. 2024. "Number 81720221428137600 - Facts about the integer". https://numbermatics.com/n/81720221428137600/

The information we have on file for 81720221428137600 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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