3998

3,998 is an even composite number composed of two prime numbers multiplied together.

What does the number 3998 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

3998 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 3998:

2 × 1999

See below for interesting mathematical facts about the number 3998 from the Numbermatics database.


Names of 3998

  • Cardinal: 3998 can be written as Three thousand, nine hundred ninety-eight.

Scientific notation

  • Scientific notation: 3.998 × 103

Factors of 3998

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 2001

Divisors of 3998

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 6000
  • Sum of proper divisors (its aliquot sum) s(n): 2002
  • 3998 is a deficient number, because the sum of its proper divisors (2002) is less than itself. Its deficiency is 1996

Bases of 3998

  • Binary: 1111100111102
  • Hexadecimal: 0xF9E
  • Base-36: 332

Squares and roots of 3998

  • 3998 squared (39982) is 15984004
  • 3998 cubed (39983) is 63904047992
  • The square root of 3998 is 63.2297398381
  • The cube root of 3998 is 15.8713644101

Scales and comparisons

How big is 3998?
  • 3,998 seconds is equal to 1 hour, 6 minutes, 38 seconds.
  • To count from 1 to 3,998 would take you about six 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 3998 cubic inches would be around 1.3 feet tall.

Recreational maths with 3998

  • 3998 backwards is 8993
  • The number of decimal digits it has is: 4
  • The sum of 3998's digits is 29
  • More coming soon!

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The information we have on file for 3998 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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