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

What does the number 133 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

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

Prime factorization of 133:

7 × 19

See below for interesting mathematical facts about the number 133 from the Numbermatics database.

Names of 133

  • Cardinal: 133 can be written as One hundred thirty-three.

Scientific notation

  • Scientific notation: 1.33 × 102

Factors of 133

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 26

Divisors of 133

  • Number of divisors d(n): 4
  • Complete list of divisors:
    1 7 19 133
  • Sum of all divisors σ(n): 160
  • Sum of proper divisors (its aliquot sum) s(n): 27
  • 133 is a deficient number, because the sum of its proper divisors (27) is less than itself. Its deficiency is 106

Bases of 133

  • Binary: 100001012
  • Hexadecimal: 0x85
  • Base-36: 3P

Squares and roots of 133

  • 133 squared (1332) is 17689
  • 133 cubed (1333) is 2352637
  • The square root of 133 is 11.5325625947
  • The cube root of 133 is 5.1044687221

Scales and comparisons

How big is 133?
  • 133 seconds is equal to 2 minutes, 13 seconds.
  • To count from 1 to 133 would take you about 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 133 cubic inches would be around 0.4 feet tall.

Recreational maths with 133

  • 133 backwards is 331
  • 133 is a Harshad number.
  • The number of decimal digits it has is: 3
  • The sum of 133's digits is 7
  • More coming soon!

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"Number 133 - Facts about the integer". Numbermatics.com. 2023. Web. 4 October 2023.

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The information we have on file for 133 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!

Keywords: Divisors of 133, math, Factors of 133, curriculum, school, college, exams, university, Prime factorization of 133, STEM, science, technology, engineering, physics, economics, calculator, one hundred thirty-three.

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