21166

21,166 is an even composite number composed of three prime numbers multiplied together.

What does the number 21166 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

21166 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 21166:

2 × 19 × 557

See below for interesting mathematical facts about the number 21166 from the Numbermatics database.


Names of 21166

  • Cardinal: 21166 can be written as Twenty-one thousand, one hundred sixty-six.

Scientific notation

  • Scientific notation: 2.1166 × 104

Factors of 21166

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 578

Divisors of 21166

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 33480
  • Sum of proper divisors (its aliquot sum) s(n): 12314
  • 21166 is a deficient number, because the sum of its proper divisors (12314) is less than itself. Its deficiency is 8852

Bases of 21166

  • Binary: 1010010101011102
  • Hexadecimal: 0x52AE
  • Base-36: GBY

Squares and roots of 21166

  • 21166 squared (211662) is 447999556
  • 21166 cubed (211663) is 9482358602296
  • The square root of 21166 is 145.4853944559
  • The cube root of 21166 is 27.6617465163

Scales and comparisons

How big is 21166?
  • 21,166 seconds is equal to 5 hours, 52 minutes, 46 seconds.
  • To count from 1 to 21,166 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 21166 cubic inches would be around 2.3 feet tall.

Recreational maths with 21166

  • 21166 backwards is 66112
  • The number of decimal digits it has is: 5
  • The sum of 21166's digits is 16
  • More coming soon!

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"Number 21166 - Facts about the integer". Numbermatics.com. 2021. Web. 4 August 2021.

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The information we have on file for 21166 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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