20808

20,808 is an even composite number composed of three prime numbers multiplied together.

What does the number 20808 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 36 divisors.

20808 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of thirty-six divisors.

Prime factorization of 20808:

23 × 32 × 172

(2 × 2 × 2 × 3 × 3 × 17 × 17)

See below for interesting mathematical facts about the number 20808 from the Numbermatics database.


Names of 20808

  • Cardinal: 20808 can be written as Twenty thousand, eight hundred eight.

Scientific notation

  • Scientific notation: 2.0808 × 104

Factors of 20808

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 7
  • Sum of prime factors: 22

Divisors of 20808

Bases of 20808

  • Binary: 1010001010010002
  • Hexadecimal: 0x5148
  • Base-36: G20

Squares and roots of 20808

  • 20808 squared (208082) is 432972864
  • 20808 cubed (208083) is 9009299354112
  • The square root of 20808 is 144.2497833621
  • The cube root of 20808 is 27.5049027071

Scales and comparisons

How big is 20808?
  • 20,808 seconds is equal to 5 hours, 46 minutes, 48 seconds.
  • To count from 1 to 20,808 would take you about five hours.

    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 20808 cubic inches would be around 2.3 feet tall.

Recreational maths with 20808

  • 20808 backwards is 80802
  • 20808 is a Harshad number.
  • The number of decimal digits it has is: 5
  • The sum of 20808's digits is 18
  • More coming soon!

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"Number 20808 - Facts about the integer". Numbermatics.com. 2021. Web. 20 June 2021.

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Numbermatics. (2021). Number 20808 - Facts about the integer. Retrieved 20 June 2021, from https://numbermatics.com/n/20808/

Chicago style:
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The information we have on file for 20808 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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