15916

15,916 is an even composite number composed of three prime numbers multiplied together.

What does the number 15916 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

15916 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 15916:

22 × 23 × 173

(2 × 2 × 23 × 173)

See below for interesting mathematical facts about the number 15916 from the Numbermatics database.


Names of 15916

  • Cardinal: 15916 can be written as Fifteen thousand, nine hundred sixteen.

Scientific notation

  • Scientific notation: 1.5916 × 104

Factors of 15916

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 4
  • Sum of prime factors: 198

Divisors of 15916

  • Number of divisors d(n): 12
  • Complete list of divisors:
  • Sum of all divisors σ(n): 29232
  • Sum of proper divisors (its aliquot sum) s(n): 13316
  • 15916 is a deficient number, because the sum of its proper divisors (13316) is less than itself. Its deficiency is 2600

Bases of 15916

  • Binary: 111110001011002
  • Hexadecimal: 0x3E2C
  • Base-36: CA4

Squares and roots of 15916

  • 15916 squared (159162) is 253319056
  • 15916 cubed (159163) is 4031826095296
  • The square root of 15916 is 126.1586303033
  • The cube root of 15916 is 25.1542463651

Scales and comparisons

How big is 15916?
  • 15,916 seconds is equal to 4 hours, 25 minutes, 16 seconds.
  • To count from 1 to 15,916 would take you about four 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 15916 cubic inches would be around 2.1 feet tall.

Recreational maths with 15916

  • 15916 backwards is 61951
  • The number of decimal digits it has is: 5
  • The sum of 15916's digits is 22
  • More coming soon!

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The information we have on file for 15916 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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