30,813 is an odd composite number composed of two prime numbers multiplied together.

What does the number 30813 look like?

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

30813 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 30813:

3 × 10271

See below for interesting mathematical facts about the number 30813 from the Numbermatics database.

Names of 30813

  • Cardinal: 30813 can be written as Thirty thousand, eight hundred thirteen.

Scientific notation

  • Scientific notation: 3.0813 × 104

Factors of 30813

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 10274

Divisors of 30813

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 41088
  • Sum of proper divisors (its aliquot sum) s(n): 10275
  • 30813 is a deficient number, because the sum of its proper divisors (10275) is less than itself. Its deficiency is 20538

Bases of 30813

  • Binary: 1111000010111012
  • Hexadecimal: 0x785D
  • Base-36: NRX

Squares and roots of 30813

  • 30813 squared (308132) is 949440969
  • 30813 cubed (308133) is 29255124577797
  • The square root of 30813 is 175.5363210279
  • The cube root of 30813 is 31.3505136907

Scales and comparisons

How big is 30813?
  • 30,813 seconds is equal to 8 hours, 33 minutes, 33 seconds.
  • To count from 1 to 30,813 would take you about eight 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 30813 cubic inches would be around 2.6 feet tall.

Recreational maths with 30813

  • 30813 backwards is 31803
  • The number of decimal digits it has is: 5
  • The sum of 30813's digits is 15
  • More coming soon!

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The information we have on file for 30813 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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