3,920 is an even composite number composed of three prime numbers multiplied together.

What does the number 3920 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 30 divisors.

3920 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of thirty divisors.

Prime factorization of 3920:

24 × 5 × 72

(2 × 2 × 2 × 2 × 5 × 7 × 7)

See below for interesting mathematical facts about the number 3920 from the Numbermatics database.

Names of 3920

  • Cardinal: 3920 can be written as Three thousand, nine hundred twenty.

Scientific notation

  • Scientific notation: 3.92 × 103

Factors of 3920

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 7
  • Sum of prime factors: 14

Divisors of 3920

Bases of 3920

  • Binary: 1111010100002
  • Hexadecimal: 0xF50
  • Base-36: 30W

Squares and roots of 3920

  • 3920 squared (39202) is 15366400
  • 3920 cubed (39203) is 60236288000
  • The square root of 3920 is 62.6099033699
  • The cube root of 3920 is 15.7674703263

Scales and comparisons

How big is 3920?
  • 3,920 seconds is equal to 1 hour, 5 minutes, 20 seconds.
  • To count from 1 to 3,920 would take you about five 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. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

  • A cube with a volume of 3920 cubic inches would be around 1.3 feet tall.

Recreational maths with 3920

  • 3920 backwards is 0293
  • 3920 is a Harshad number.
  • The number of decimal digits it has is: 4
  • The sum of 3920's digits is 14
  • More coming soon!

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The information we have on file for 3920 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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