31397

31,397 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 31397 look like?

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

31397 is a prime number. Like all primes (except two), it is an odd number.

Prime factorization of 31397:

31397

See below for interesting mathematical facts about the number 31397 from the Numbermatics database.


Names of 31397

  • Cardinal: 31397 can be written as Thirty-one thousand, three hundred ninety-seven.

Scientific notation

  • Scientific notation: 3.1397 × 104

Factors of 31397

  • Number of distinct prime factors ω(n): 1
  • Total number of prime factors Ω(n): 1
  • Sum of prime factors: 31397

Divisors of 31397

  • Number of divisors d(n): 2
  • Complete list of divisors:
  • Sum of all divisors σ(n): 31398
  • Sum of proper divisors (its aliquot sum) s(n): 1
  • 31397 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 31396

Bases of 31397

  • Binary: 1111010101001012
  • Hexadecimal: 0x7AA5
  • Base-36: O85

Squares and roots of 31397

  • 31397 squared (313972) is 985771609
  • 31397 cubed (313973) is 30950271207773
  • The square root of 31397 is 177.1919862747
  • The cube root of 31397 is 31.5473379125

Scales and comparisons

How big is 31397?
  • 31,397 seconds is equal to 8 hours, 43 minutes, 17 seconds.
  • To count from 1 to 31,397 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 31397 cubic inches would be around 2.6 feet tall.

Recreational maths with 31397

  • 31397 backwards is 79313
  • The number of decimal digits it has is: 5
  • The sum of 31397's digits is 23
  • More coming soon!

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"Number 31397 - Facts about the integer". Numbermatics.com. 2024. Web. 29 March 2024.

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Numbermatics. (2024). Number 31397 - Facts about the integer. Retrieved 29 March 2024, from https://numbermatics.com/n/31397/

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The information we have on file for 31397 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 31397, math, Factors of 31397, curriculum, school, college, exams, university, Prime factorization of 31397, STEM, science, technology, engineering, physics, economics, calculator, thirty-one thousand, three hundred ninety-seven.

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