120 is an even composite number composed of three prime numbers multiplied together.

120 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 120:

23 × 3 × 5

(2 × 2 × 2 × 3 × 5)

See below for interesting mathematical facts about the number 120 from the Numbermatics database.

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Names Factors Divisors Scales Roots Fun

Names of 120

  • Cardinal: 120 can be written as One hundred twenty.

Scientific notation

  • Scientific notation: 1.2 × 102

Factors of 120

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 5
  • Sum of prime factors: 10

Divisors of 120

  • Number of divisors d(n): 16
  • Complete list of divisors:
  • Sum of all divisors σ(n): 360
  • Sum of proper divisors (its aliquot sum) s(n): 240
  • 120 is an abundant number, because the sum of its proper divisors (240) is greater than itself. Its abundance is 120

Bases of 120

  • Binary: 1111000 2
  • Hexadecimal: 0x78

Squares and roots of 120

  • 120 squared (1202) is 14400
  • 120 cubed (1203) is 1728000
  • The square root of 120 is 10.9544511501
  • The cube root of 120 is 4.9324241487

Scales and comparisons

How big is 120?
  • 120 seconds is equal to 2 minutes.
  • To count from 1 to 120 would take you about one minute.

    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.

    Note: we do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!

  • A cube with a volume of 120 cubic inches would be around 0.4 feet tall.

Recreational maths with 120

  • 120 backwards is 021
  • 120 is a Harshad number.
  • The number of decimal digits it has is: 3
  • The sum of 120's digits is 3
  • More coming soon!

The information we have on file for 120 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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