172

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

What does the number 172 look like?

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

172 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 172:

22 × 43

(2 × 2 × 43)

See below for interesting mathematical facts about the number 172 from the Numbermatics database.


Names of 172

  • Cardinal: 172 can be written as One hundred seventy-two.

Scientific notation

  • Scientific notation: 1.72 × 102

Factors of 172

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 45

Divisors of 172

  • Number of divisors d(n): 6
  • Complete list of divisors:
    1 2 4 43 86 172
  • Sum of all divisors σ(n): 308
  • Sum of proper divisors (its aliquot sum) s(n): 136
  • 172 is a deficient number, because the sum of its proper divisors (136) is less than itself. Its deficiency is 36

Bases of 172

  • Binary: 101011002
  • Hexadecimal: 0xAC
  • Base-36: 4S

Squares and roots of 172

  • 172 squared (1722) is 29584
  • 172 cubed (1723) is 5088448
  • The square root of 172 is 13.1148770487
  • The cube root of 172 is 5.5612977665

Scales and comparisons

How big is 172?
  • 172 seconds is equal to 2 minutes, 52 seconds.
  • To count from 1 to 172 would take you about twenty-six seconds.

    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 172 cubic inches would be around 0.5 feet tall.

Recreational maths with 172

  • 172 backwards is 271
  • The number of decimal digits it has is: 3
  • The sum of 172's digits is 10
  • More coming soon!

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The information we have on file for 172 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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