138609

138,609 is an odd composite number composed of two prime numbers multiplied together.

What does the number 138609 look like?

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

138609 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 138609:

3² × 15401

(3 × 3 × 15401)

See below for interesting mathematical facts about the number 138609 from the Numbermatics database.

Names of 138609

Cardinal: 138609 can be written as One hundred thirty-eight thousand, six hundred nine.

Scientific notation

Scientific notation: 1.38609 × 10⁵

Factors of 138609

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 15404

Divisors of 138609

Number of divisors d(n): 6
Complete list of divisors:
1 3 9 15401 46203 138609
Sum of all divisors σ(n): 200226
Sum of proper divisors (its aliquot sum) s(n): 61617
138609 is a deficient number, because the sum of its proper divisors (61617) is less than itself. Its deficiency is 76992

Bases of 138609

Binary: 100001110101110001₂
Hexadecimal: 0x21D71
Base-36: 2YY9

Squares and roots of 138609

138609 squared (138609²) is 19212454881
138609 cubed (138609³) is 2663019158600529
The square root of 138609 is 372.3022965279
The cube root of 138609 is 51.7523978445

Scales and comparisons

How big is 138609?

138,609 seconds is equal to 1 day, 14 hours, 30 minutes, 9 seconds.
To count from 1 to 138,609 would take you about fourteen 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 138609 cubic inches would be around 4.3 feet tall.

Recreational maths with 138609

138609 backwards is 906831
The number of decimal digits it has is: 6
The sum of 138609's digits is 27
More coming soon!

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The information we have on file for 138609 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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