331 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 331 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

331 is a prime number. Like all primes (except two), it is an odd number.

Prime factorization of 331:


See below for interesting mathematical facts about the number 331 from the Numbermatics database.

Names of 331

  • Cardinal: 331 can be written as Three hundred thirty-one.

Scientific notation

  • Scientific notation: 3.31 × 102

Factors of 331

  • Number of distinct prime factors ω(n): 1
  • Total number of prime factors Ω(n): 1
  • Sum of prime factors: 331

Divisors of 331

  • Number of divisors d(n): 2
  • Complete list of divisors:
    1 331
  • Sum of all divisors σ(n): 332
  • Sum of proper divisors (its aliquot sum) s(n): 1
  • 331 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 330

Bases of 331

  • Binary: 1010010112
  • Hexadecimal: 0x14B
  • Base-36: 97

Squares and roots of 331

  • 331 squared (3312) is 109561
  • 331 cubed (3313) is 36264691
  • The square root of 331 is 18.1934053987
  • The cube root of 331 is 6.9173964165

Scales and comparisons

How big is 331?
  • 331 seconds is equal to 5 minutes, 31 seconds.
  • To count from 1 to 331 would take you about two 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 331 cubic inches would be around 0.6 feet tall.

Recreational maths with 331

  • 331 backwards is 133
  • The number of decimal digits it has is: 3
  • The sum of 331's digits is 7
  • More coming soon!

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"Number 331 - Facts about the integer". Numbermatics.com. 2024. Web. 5 March 2024.

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Numbermatics. (2024). Number 331 - Facts about the integer. Retrieved 5 March 2024, from https://numbermatics.com/n/331/

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Numbermatics. 2024. "Number 331 - Facts about the integer". https://numbermatics.com/n/331/

The information we have on file for 331 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 331, math, Factors of 331, curriculum, school, college, exams, university, Prime factorization of 331, STEM, science, technology, engineering, physics, economics, calculator, three hundred thirty-one.

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