689988

689,988 is an even composite number composed of four prime numbers multiplied together.

What does the number 689988 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

689988 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 689988:

2² × 3 × 13 × 4423

(2 × 2 × 3 × 13 × 4423)

See below for interesting mathematical facts about the number 689988 from the Numbermatics database.

Names of 689988

Cardinal: 689988 can be written as Six hundred eighty-nine thousand, nine hundred eighty-eight.

Scientific notation

Scientific notation: 6.89988 × 10⁵

Factors of 689988

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 4441

Divisors of 689988

Number of divisors d(n): 24
Complete list of divisors:
1 2 3 4 6 12 13 26 39 52 78 156 4423 8846 13269 17692 26538 53076 57499 114998 172497 229996 344994 689988
Sum of all divisors σ(n): 1734208
Sum of proper divisors (its aliquot sum) s(n): 1044220
689988 is an abundant number, because the sum of its proper divisors (1044220) is greater than itself. Its abundance is 354232

Bases of 689988

Binary: 10101000011101000100₂
Hexadecimal: 0xA8744
Base-36: ESEC

Squares and roots of 689988

689988 squared (689988²) is 476083440144
689988 cubed (689988³) is 328491860698078272
The square root of 689988 is 830.6551631091
The cube root of 689988 is 88.3650469569

Scales and comparisons

How big is 689988?

689,988 seconds is equal to 1 week, 23 hours, 39 minutes, 48 seconds.
To count from 1 to 689,988 would take you about twenty-three 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 689988 cubic inches would be around 7.4 feet tall.

Recreational maths with 689988

689988 backwards is 889986
The number of decimal digits it has is: 6
The sum of 689988's digits is 48
More coming soon!

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The information we have on file for 689988 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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