724

724 is an even composite number composed of two prime numbers multiplied together.

What does the number 724 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

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

Prime factorization of 724:

22 × 181

(2 × 2 × 181)

See below for interesting mathematical facts about the number 724 from the Numbermatics database.


Names of 724

  • Cardinal: 724 can be written as Seven hundred twenty-four.

Scientific notation

  • Scientific notation: 7.24 × 102

Factors of 724

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 183

Divisors of 724

  • Number of divisors d(n): 6
  • Complete list of divisors:
  • Sum of all divisors σ(n): 1274
  • Sum of proper divisors (its aliquot sum) s(n): 550
  • 724 is a deficient number, because the sum of its proper divisors (550) is less than itself. Its deficiency is 174

Bases of 724

  • Binary: 10110101002
  • Hexadecimal: 0x2D4
  • Base-36: K4

Squares and roots of 724

  • 724 squared (7242) is 524176
  • 724 cubed (7243) is 379503424
  • The square root of 724 is 26.9072480941
  • The cube root of 724 is 8.9793766463

Scales and comparisons

How big is 724?
  • 724 seconds is equal to 12 minutes, 4 seconds.
  • To count from 1 to 724 would take you about six 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 724 cubic inches would be around 0.7 feet tall.

Recreational maths with 724

  • 724 backwards is 427
  • The number of decimal digits it has is: 3
  • The sum of 724's digits is 13
  • More coming soon!

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The information we have on file for 724 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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