722

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

What does the number 722 look like?

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

722 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 722:

2 × 192

(2 × 19 × 19)

See below for interesting mathematical facts about the number 722 from the Numbermatics database.


Names of 722

  • Cardinal: 722 can be written as Seven hundred twenty-two.

Scientific notation

  • Scientific notation: 7.22 × 102

Factors of 722

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 21

Divisors of 722

  • Number of divisors d(n): 6
  • Complete list of divisors:
  • Sum of all divisors σ(n): 1143
  • Sum of proper divisors (its aliquot sum) s(n): 421
  • 722 is a deficient number, because the sum of its proper divisors (421) is less than itself. Its deficiency is 301

Bases of 722

  • Binary: 10110100102
  • Hexadecimal: 0x2D2
  • Base-36: K2

Squares and roots of 722

  • 722 squared (7222) is 521284
  • 722 cubed (7223) is 376367048
  • The square root of 722 is 26.8700576851
  • The cube root of 722 is 8.9711007185

Scales and comparisons

How big is 722?
  • 722 seconds is equal to 12 minutes, 2 seconds.
  • To count from 1 to 722 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 722 cubic inches would be around 0.7 feet tall.

Recreational maths with 722

  • 722 backwards is 227
  • The number of decimal digits it has is: 3
  • The sum of 722's digits is 11
  • More coming soon!

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The information we have on file for 722 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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