320

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

320 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of fourteen divisors.

Prime factorization of 320:

26 × 5

(2 × 2 × 2 × 2 × 2 × 2 × 5)

See below for interesting mathematical facts about the number 320 from the Numbermatics database.

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Names Factors Divisors Scales Roots Fun

Names of 320

  • Cardinal: 320 can be written as Three hundred twenty.

Scientific notation

  • Scientific notation: 3.2 × 102

Factors of 320

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 7
  • Sum of prime factors: 7

Divisors of 320

  • Number of divisors d(n): 14
  • Complete list of divisors:
  • Sum of all divisors σ(n): 762
  • Sum of proper divisors (its aliquot sum) s(n): 442
  • 320 is an abundant number, because the sum of its proper divisors (442) is greater than itself. Its abundance is 122

Bases of 320

  • Binary: 101000000 2
  • Hexadecimal: 0x140
  • Base-36: 8W

Squares and roots of 320

  • 320 squared (3202) is 102400
  • 320 cubed (3203) is 32768000
  • The square root of 320 is 17.8885438200
  • The cube root of 320 is 6.8399037869

Scales and comparisons

How big is 320?
  • 320 seconds is equal to 5 minutes, 20 seconds.
  • To count from 1 to 320 would take you about two 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.

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

  • A cube with a volume of 320 cubic inches would be around 0.6 feet tall.

Recreational maths with 320

  • 320 backwards is 023
  • 320 is a Harshad number.
  • The number of decimal digits it has is: 3
  • The sum of 320's digits is 5
  • More coming soon!

The information we have on file for 320 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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