138906

138,906 is an even composite number composed of three prime numbers multiplied together.

What does the number 138906 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

138906 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 138906:

2 × 3² × 7717

(2 × 3 × 3 × 7717)

See below for interesting mathematical facts about the number 138906 from the Numbermatics database.

Names of 138906

Cardinal: 138906 can be written as One hundred thirty-eight thousand, nine hundred six.

Scientific notation

Scientific notation: 1.38906 × 10⁵

Factors of 138906

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 7722

Divisors of 138906

Number of divisors d(n): 12
Complete list of divisors:
1 2 3 6 9 18 7717 15434 23151 46302 69453 138906
Sum of all divisors σ(n): 301002
Sum of proper divisors (its aliquot sum) s(n): 162096
138906 is an abundant number, because the sum of its proper divisors (162096) is greater than itself. Its abundance is 23190

Bases of 138906

Binary: 100001111010011010₂
Hexadecimal: 0x21E9A
Base-36: 2Z6I

Squares and roots of 138906

138906 squared (138906²) is 19294876836
138906 cubed (138906³) is 2680174161781416
The square root of 138906 is 372.7009525073
The cube root of 138906 is 51.7893350733

Scales and comparisons

How big is 138906?

138,906 seconds is equal to 1 day, 14 hours, 35 minutes, 6 seconds.
To count from 1 to 138,906 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 138906 cubic inches would be around 4.3 feet tall.

Recreational maths with 138906

138906 backwards is 609831
The number of decimal digits it has is: 6
The sum of 138906's digits is 27
More coming soon!

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The information we have on file for 138906 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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