171

171 is an odd composite number composed of two prime numbers multiplied together.

What does the number 171 look like?

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

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

Prime factorization of 171:

32 × 19

(3 × 3 × 19)

See below for interesting mathematical facts about the number 171 from the Numbermatics database.


Names of 171

  • Cardinal: 171 can be written as One hundred seventy-one.

Scientific notation

  • Scientific notation: 1.71 × 102

Factors of 171

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 22

Divisors of 171

  • Number of divisors d(n): 6
  • Complete list of divisors:
    1 3 9 19 57 171
  • Sum of all divisors σ(n): 260
  • Sum of proper divisors (its aliquot sum) s(n): 89
  • 171 is a deficient number, because the sum of its proper divisors (89) is less than itself. Its deficiency is 82

Bases of 171

  • Binary: 101010112
  • Hexadecimal: 0xAB
  • Base-36: 4R

Squares and roots of 171

  • 171 squared (1712) is 29241
  • 171 cubed (1713) is 5000211
  • The square root of 171 is 13.0766968307
  • The cube root of 171 is 5.5504991029

Scales and comparisons

How big is 171?
  • 171 seconds is equal to 2 minutes, 51 seconds.
  • To count from 1 to 171 would take you about twenty-five 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 171 cubic inches would be around 0.5 feet tall.

Recreational maths with 171

  • 171 is the same when its digits are reversed! That makes it a palindromic number.
  • 171 is a Harshad number.
  • The number of decimal digits it has is: 3
  • The sum of 171's digits is 9
  • More coming soon!

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Numbermatics. (2020). Number 171 - Facts about the integer. Retrieved 5 August 2020, from https://numbermatics.com/n/171/

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The information we have on file for 171 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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