2639

2,639 is an odd composite number composed of three prime numbers multiplied together.

What does the number 2639 look like?

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

2639 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 2639:

7 × 13 × 29

See below for interesting mathematical facts about the number 2639 from the Numbermatics database.


Names of 2639

  • Cardinal: 2639 can be written as Two thousand, six hundred thirty-nine.

Scientific notation

  • Scientific notation: 2.639 × 103

Factors of 2639

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 49

Divisors of 2639

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 3360
  • Sum of proper divisors (its aliquot sum) s(n): 721
  • 2639 is a deficient number, because the sum of its proper divisors (721) is less than itself. Its deficiency is 1918

Bases of 2639

  • Binary: 1010010011112
  • Hexadecimal: 0xA4F
  • Base-36: 21B

Squares and roots of 2639

  • 2639 squared (26392) is 6964321
  • 2639 cubed (26393) is 18378843119
  • The square root of 2639 is 51.3711981561
  • The cube root of 2639 is 13.8191011833

Scales and comparisons

How big is 2639?
  • 2,639 seconds is equal to 43 minutes, 59 seconds.
  • To count from 1 to 2,639 would take you about forty-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 2639 cubic inches would be around 1.2 feet tall.

Recreational maths with 2639

  • 2639 backwards is 9362
  • The number of decimal digits it has is: 4
  • The sum of 2639's digits is 20
  • More coming soon!

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"Number 2639 - Facts about the integer". Numbermatics.com. 2021. Web. 20 June 2021.

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Numbermatics. (2021). Number 2639 - Facts about the integer. Retrieved 20 June 2021, from https://numbermatics.com/n/2639/

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The information we have on file for 2639 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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