3,813 is an odd composite number composed of three prime numbers multiplied together.

What does the number 3813 look like?

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

3813 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 3813:

3 × 31 × 41

See below for interesting mathematical facts about the number 3813 from the Numbermatics database.

Names of 3813

  • Cardinal: 3813 can be written as Three thousand, eight hundred thirteen.

Scientific notation

  • Scientific notation: 3.813 × 103

Factors of 3813

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 75

Divisors of 3813

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 5376
  • Sum of proper divisors (its aliquot sum) s(n): 1563
  • 3813 is a deficient number, because the sum of its proper divisors (1563) is less than itself. Its deficiency is 2250

Bases of 3813

  • Binary: 1110111001012
  • Hexadecimal: 0xEE5
  • Base-36: 2XX

Squares and roots of 3813

  • 3813 squared (38132) is 14538969
  • 3813 cubed (38133) is 55437088797
  • The square root of 3813 is 61.7494939251
  • The cube root of 3813 is 15.6226823229

Scales and comparisons

How big is 3813?
  • 3,813 seconds is equal to 1 hour, 3 minutes, 33 seconds.
  • To count from 1 to 3,813 would take you about three 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 3813 cubic inches would be around 1.3 feet tall.

Recreational maths with 3813

  • 3813 backwards is 3183
  • The number of decimal digits it has is: 4
  • The sum of 3813's digits is 15
  • More coming soon!

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"Number 3813 - Facts about the integer". Numbermatics.com. 2023. Web. 28 September 2023.

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Numbermatics. (2023). Number 3813 - Facts about the integer. Retrieved 28 September 2023, from https://numbermatics.com/n/3813/

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The information we have on file for 3813 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 3813, math, Factors of 3813, curriculum, school, college, exams, university, Prime factorization of 3813, STEM, science, technology, engineering, physics, economics, calculator, three thousand, eight hundred thirteen.

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