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

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

Prime factorization of 216:

23 × 33

(2 × 2 × 2 × 3 × 3 × 3)

See below for interesting mathematical facts about the number 216 from the Numbermatics database.

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Names Factors Divisors Scales Roots Fun

Names of 216

  • Cardinal: 216 can be written as Two hundred sixteen.

Scientific notation

  • Scientific notation: 2.16 × 102

Factors of 216

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 6
  • Sum of prime factors: 5

Divisors of 216

  • Number of divisors d(n): 16
  • Complete list of divisors:
  • Sum of all divisors σ(n): 600
  • Sum of proper divisors (its aliquot sum) s(n): 384
  • 216 is an abundant number, because the sum of its proper divisors (384) is greater than itself. Its abundance is 168

Bases of 216

  • Binary: 11011000 2
  • Hexadecimal: 0xd8

Squares and roots of 216

  • 216 squared (2162) is 46656
  • 216 cubed (2163) is 10077696
  • The square root of 216 is 14.6969384567
  • 216 is a perfect cube number. Its cube root is 6

Scales and comparisons

How big is 216?
  • 216 seconds is equal to 3 minutes, 36 seconds.
  • To count from 1 to 216 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 216 cubic inches would be around 0.5 feet tall.

Recreational maths with 216

  • 216 backwards is 612
  • 216 is a Harshad number.
  • The number of decimal digits it has is: 3
  • The sum of 216's digits is 9
  • More coming soon!

The information we have on file for 216 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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