388

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

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

Prime factorization of 388:

22 × 97

(2 × 2 × 97)

See below for interesting mathematical facts about the number 388 from the Numbermatics database.

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Names Factors Divisors Scales Roots Fun

Names of 388

  • Cardinal: 388 can be written as Three hundred eighty-eight.

Scientific notation

  • Scientific notation: 3.88 × 102

Factors of 388

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 99

Divisors of 388

  • Number of divisors d(n): 6
  • Complete list of divisors:
  • Sum of all divisors σ(n): 686
  • Sum of proper divisors (its aliquot sum) s(n): 298
  • 388 is a deficient number, because the sum of its proper divisors (298) is less than itself. Its deficiency is 90

Bases of 388

  • Binary: 110000100 2
  • Hexadecimal: 0x184

Squares and roots of 388

  • 388 squared (3882) is 150544
  • 388 cubed (3883) is 58411072
  • The square root of 388 is 19.6977156035
  • The cube root of 388 is 7.2936330297

Scales and comparisons

How big is 388?
  • 388 seconds is equal to 6 minutes, 28 seconds.
  • To count from 1 to 388 would take you about three 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 388 cubic inches would be around 0.6 feet tall.

Recreational maths with 388

  • 388 backwards is 883
  • The number of decimal digits it has is: 3
  • The sum of 388's digits is 19
  • More coming soon!

The information we have on file for 388 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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