9813

9,813 is an odd composite number composed of two prime numbers multiplied together.

What does the number 9813 look like?

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

9813 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 9813:

3 × 3271

See below for interesting mathematical facts about the number 9813 from the Numbermatics database.


Names of 9813

  • Cardinal: 9813 can be written as Nine thousand, eight hundred thirteen.

Scientific notation

  • Scientific notation: 9.813 × 103

Factors of 9813

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 3274

Divisors of 9813

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 13088
  • Sum of proper divisors (its aliquot sum) s(n): 3275
  • 9813 is a deficient number, because the sum of its proper divisors (3275) is less than itself. Its deficiency is 6538

Bases of 9813

  • Binary: 100110010101012
  • Hexadecimal: 0x2655
  • Base-36: 7KL

Squares and roots of 9813

  • 9813 squared (98132) is 96294969
  • 9813 cubed (98133) is 944942530797
  • The square root of 9813 is 99.0605875209
  • The cube root of 9813 is 21.4092079045

Scales and comparisons

How big is 9813?
  • 9,813 seconds is equal to 2 hours, 43 minutes, 33 seconds.
  • To count from 1 to 9,813 would take you about two 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 9813 cubic inches would be around 1.8 feet tall.

Recreational maths with 9813

  • 9813 backwards is 3189
  • The number of decimal digits it has is: 4
  • The sum of 9813's digits is 21
  • More coming soon!

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"Number 9813 - Facts about the integer". Numbermatics.com. 2021. Web. 20 October 2021.

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Numbermatics. (2021). Number 9813 - Facts about the integer. Retrieved 20 October 2021, from https://numbermatics.com/n/9813/

Chicago style:
Numbermatics. 2021. "Number 9813 - Facts about the integer". https://numbermatics.com/n/9813/

The information we have on file for 9813 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 9813, math, Factors of 9813, curriculum, school, college, exams, university, Prime factorization of 9813, STEM, science, technology, engineering, physics, economics, calculator, nine thousand, eight hundred thirteen.

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