663988

663,988 is an even composite number composed of three prime numbers multiplied together.

What does the number 663988 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 18 divisors.

663988 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eighteen divisors.

Prime factorization of 663988:

2² × 13 × 113²

(2 × 2 × 13 × 113 × 113)

See below for interesting mathematical facts about the number 663988 from the Numbermatics database.

Names of 663988

Cardinal: 663988 can be written as Six hundred sixty-three thousand, nine hundred eighty-eight.

Scientific notation

Scientific notation: 6.63988 × 10⁵

Factors of 663988

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 128

Divisors of 663988

Number of divisors d(n): 18
Complete list of divisors:
1 2 4 13 26 52 113 226 452 1469 2938 5876 12769 25538 51076 165997 331994 663988
Sum of all divisors σ(n): 1262534
Sum of proper divisors (its aliquot sum) s(n): 598546
663988 is a deficient number, because the sum of its proper divisors (598546) is less than itself. Its deficiency is 65442

Bases of 663988

Binary: 10100010000110110100₂
Hexadecimal: 0xA21B4
Base-36: E8C4

Squares and roots of 663988

663988 squared (663988²) is 440880064144
663988 cubed (663988³) is 292739072030846272
The square root of 663988 is 814.8545882549
The cube root of 663988 is 87.2408878753

Scales and comparisons

How big is 663988?

663,988 seconds is equal to 1 week, 16 hours, 26 minutes, 28 seconds.
To count from 1 to 663,988 would take you about sixteen hours!

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 663988 cubic inches would be around 7.3 feet tall.

Recreational maths with 663988

663988 backwards is 889366
The number of decimal digits it has is: 6
The sum of 663988's digits is 40
More coming soon!

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The information we have on file for 663988 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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