31138

31,138 is an even composite number composed of two prime numbers multiplied together.

What does the number 31138 look like?

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

31138 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 31138:

2 × 15569

See below for interesting mathematical facts about the number 31138 from the Numbermatics database.


Names of 31138

  • Cardinal: 31138 can be written as Thirty-one thousand, one hundred thirty-eight.

Scientific notation

  • Scientific notation: 3.1138 × 104

Factors of 31138

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 15571

Divisors of 31138

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 46710
  • Sum of proper divisors (its aliquot sum) s(n): 15572
  • 31138 is a deficient number, because the sum of its proper divisors (15572) is less than itself. Its deficiency is 15566

Bases of 31138

  • Binary: 1111001101000102
  • Hexadecimal: 0x79A2
  • Base-36: O0Y

Squares and roots of 31138

  • 31138 squared (311382) is 969575044
  • 31138 cubed (311383) is 30190627720072
  • The square root of 31138 is 176.4596271105
  • The cube root of 31138 is 31.4603515607

Scales and comparisons

How big is 31138?
  • 31,138 seconds is equal to 8 hours, 38 minutes, 58 seconds.
  • To count from 1 to 31,138 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 31138 cubic inches would be around 2.6 feet tall.

Recreational maths with 31138

  • 31138 backwards is 83113
  • The number of decimal digits it has is: 5
  • The sum of 31138's digits is 16
  • More coming soon!

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"Number 31138 - Facts about the integer". Numbermatics.com. 2024. Web. 4 May 2024.

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Numbermatics. (2024). Number 31138 - Facts about the integer. Retrieved 4 May 2024, from https://numbermatics.com/n/31138/

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Numbermatics. 2024. "Number 31138 - Facts about the integer". https://numbermatics.com/n/31138/

The information we have on file for 31138 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 31138, math, Factors of 31138, curriculum, school, college, exams, university, Prime factorization of 31138, STEM, science, technology, engineering, physics, economics, calculator, thirty-one thousand, one hundred thirty-eight.

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