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:
1 3 163 489
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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