138581538

138,581,538 is an even composite number composed of five prime numbers multiplied together.

What does the number 138581538 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 32 divisors.

138581538 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 138581538:

2 × 3 × 53 × 263 × 1657

See below for interesting mathematical facts about the number 138581538 from the Numbermatics database.

Names of 138581538

Cardinal: 138581538 can be written as One hundred thirty-eight million, five hundred eighty-one thousand, five hundred thirty-eight.

Scientific notation

Scientific notation: 1.38581538 × 10⁸

Factors of 138581538

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 5
Sum of prime factors: 1978

Divisors of 138581538

Number of divisors d(n): 32
Complete list of divisors:
1 2 3 6 53 106 159 263 318 526 789 1578 1657 3314 4971 9942 13939 27878 41817 83634 87821 175642 263463 435791 526926 871582 1307373 2614746 23096923 46193846 69290769 138581538
Sum of all divisors σ(n): 283637376
Sum of proper divisors (its aliquot sum) s(n): 145055838
138581538 is an abundant number, because the sum of its proper divisors (145055838) is greater than itself. Its abundance is 6474300

Bases of 138581538

Binary: 1000010000101001011000100010₂
Hexadecimal: 0x8429622
Base-36: 2AIA76

Squares and roots of 138581538

138581538 squared (138581538²) is 19204842674445444
138581538 cubed (138581538³) is 2661436634872682926612872
The square root of 138581538 is 11772.0660038923
The cube root of 138581538 is 517.4897979271

Scales and comparisons

How big is 138581538?

138,581,538 seconds is equal to 4 years, 21 weeks, 22 hours, 52 minutes, 18 seconds.
To count from 1 to 138,581,538 would take you about six years!

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 138581538 cubic inches would be around 43.1 feet tall.

Recreational maths with 138581538

138581538 backwards is 835185831
The number of decimal digits it has is: 9
The sum of 138581538's digits is 42
More coming soon!

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The information we have on file for 138581538 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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