489

489 is an odd composite number composed of two prime numbers multiplied together.

What does the number 489 look like?

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

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

Prime factorization of 489:

3 × 163

See below for interesting mathematical facts about the number 489 from the Numbermatics database.


Names of 489

  • Cardinal: 489 can be written as Four hundred eighty-nine.

Scientific notation

  • Scientific notation: 4.89 × 102

Factors of 489

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 166

Divisors of 489

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 656
  • Sum of proper divisors (its aliquot sum) s(n): 167
  • 489 is a deficient number, because the sum of its proper divisors (167) is less than itself. Its deficiency is 322

Bases of 489

  • Binary: 1111010012
  • Hexadecimal: 0x1E9
  • Base-36: DL

Squares and roots of 489

  • 489 squared (4892) is 239121
  • 489 cubed (4893) is 116930169
  • The square root of 489 is 22.1133443875
  • The cube root of 489 is 7.8783684255

Scales and comparisons

How big is 489?
  • 489 seconds is equal to 8 minutes, 9 seconds.
  • To count from 1 to 489 would take you about four 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 489 cubic inches would be around 0.7 feet tall.

Recreational maths with 489

  • 489 backwards is 984
  • The number of decimal digits it has is: 3
  • The sum of 489's digits is 21
  • More coming soon!

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The information we have on file for 489 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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