66689

66,689 is an odd composite number composed of two prime numbers multiplied together.

What does the number 66689 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

66689 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 66689:

7² × 1361

(7 × 7 × 1361)

See below for interesting mathematical facts about the number 66689 from the Numbermatics database.

Names of 66689

Cardinal: 66689 can be written as Sixty-six thousand, six hundred eighty-nine.

Scientific notation

Scientific notation: 6.6689 × 10⁴

Factors of 66689

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 1368

Divisors of 66689

Number of divisors d(n): 6
Complete list of divisors:
1 7 49 1361 9527 66689
Sum of all divisors σ(n): 77634
Sum of proper divisors (its aliquot sum) s(n): 10945
66689 is a deficient number, because the sum of its proper divisors (10945) is less than itself. Its deficiency is 55744

Bases of 66689

Binary: 10000010010000001₂
Hexadecimal: 0x10481
Base-36: 1FGH

Squares and roots of 66689

66689 squared (66689²) is 4447422721
66689 cubed (66689³) is 296594173840769
The square root of 66689 is 258.2421344397
The cube root of 66689 is 40.5525406595

Scales and comparisons

How big is 66689?

66,689 seconds is equal to 18 hours, 31 minutes, 29 seconds.
To count from 1 to 66,689 would take you about eighteen 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 66689 cubic inches would be around 3.4 feet tall.

Recreational maths with 66689

66689 backwards is 98666
The number of decimal digits it has is: 5
The sum of 66689's digits is 35
More coming soon!

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The information we have on file for 66689 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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