21036

21,036 is an even composite number composed of three prime numbers multiplied together.

What does the number 21036 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

21036 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 21036:

22 × 3 × 1753

(2 × 2 × 3 × 1753)

See below for interesting mathematical facts about the number 21036 from the Numbermatics database.


Names of 21036

  • Cardinal: 21036 can be written as Twenty-one thousand and thirty-six.

Scientific notation

  • Scientific notation: 2.1036 × 104

Factors of 21036

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 4
  • Sum of prime factors: 1758

Divisors of 21036

  • Number of divisors d(n): 12
  • Complete list of divisors:
  • Sum of all divisors σ(n): 49112
  • Sum of proper divisors (its aliquot sum) s(n): 28076
  • 21036 is an abundant number, because the sum of its proper divisors (28076) is greater than itself. Its abundance is 7040

Bases of 21036

  • Binary: 1010010001011002
  • Hexadecimal: 0x522C
  • Base-36: G8C

Squares and roots of 21036

  • 21036 squared (210362) is 442513296
  • 21036 cubed (210363) is 9308709694656
  • The square root of 21036 is 145.0379260745
  • The cube root of 21036 is 27.6049980445

Scales and comparisons

How big is 21036?
  • 21,036 seconds is equal to 5 hours, 50 minutes, 36 seconds.
  • To count from 1 to 21,036 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 21036 cubic inches would be around 2.3 feet tall.

Recreational maths with 21036

  • 21036 backwards is 63012
  • 21036 is a Harshad number.
  • The number of decimal digits it has is: 5
  • The sum of 21036's digits is 12
  • More coming soon!

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"Number 21036 - Facts about the integer". Numbermatics.com. 2024. Web. 28 March 2024.

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Numbermatics. (2024). Number 21036 - Facts about the integer. Retrieved 28 March 2024, from https://numbermatics.com/n/21036/

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Numbermatics. 2024. "Number 21036 - Facts about the integer". https://numbermatics.com/n/21036/

The information we have on file for 21036 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!

Keywords: Divisors of 21036, math, Factors of 21036, curriculum, school, college, exams, university, Prime factorization of 21036, STEM, science, technology, engineering, physics, economics, calculator, twenty-one thousand and thirty-six.

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