2813

2,813 is an odd composite number composed of two prime numbers multiplied together.

What does the number 2813 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

2813 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 2813:

29 × 97

See below for interesting mathematical facts about the number 2813 from the Numbermatics database.


Names of 2813

  • Cardinal: 2813 can be written as Two thousand, eight hundred thirteen.

Scientific notation

  • Scientific notation: 2.813 × 103

Factors of 2813

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 126

Divisors of 2813

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 2940
  • Sum of proper divisors (its aliquot sum) s(n): 127
  • 2813 is a deficient number, because the sum of its proper divisors (127) is less than itself. Its deficiency is 2686

Bases of 2813

  • Binary: 1010111111012
  • Hexadecimal: 0xAFD
  • Base-36: 265

Squares and roots of 2813

  • 2813 squared (28132) is 7912969
  • 2813 cubed (28133) is 22259181797
  • The square root of 2813 is 53.0377224247
  • The cube root of 2813 is 14.1163768601

Scales and comparisons

How big is 2813?
  • 2,813 seconds is equal to 46 minutes, 53 seconds.
  • To count from 1 to 2,813 would take you about forty-six minutes.

    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 2813 cubic inches would be around 1.2 feet tall.

Recreational maths with 2813

  • 2813 backwards is 3182
  • The number of decimal digits it has is: 4
  • The sum of 2813's digits is 14
  • More coming soon!

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"Number 2813 - Facts about the integer". Numbermatics.com. 2024. Web. 24 May 2024.

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Numbermatics. (2024). Number 2813 - Facts about the integer. Retrieved 24 May 2024, from https://numbermatics.com/n/2813/

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The information we have on file for 2813 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 2813, math, Factors of 2813, curriculum, school, college, exams, university, Prime factorization of 2813, STEM, science, technology, engineering, physics, economics, calculator, two thousand, eight hundred thirteen.

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