138391489

138,391,489 is an odd composite number composed of two prime numbers multiplied together.

What does the number 138391489 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

138391489 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 138391489:

79 × 1751791

See below for interesting mathematical facts about the number 138391489 from the Numbermatics database.

Names of 138391489

Cardinal: 138391489 can be written as One hundred thirty-eight million, three hundred ninety-one thousand, four hundred eighty-nine.

Scientific notation

Scientific notation: 1.38391489 × 10⁸

Factors of 138391489

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 1751870

Divisors of 138391489

Number of divisors d(n): 4
Complete list of divisors:
1 79 1751791 138391489
Sum of all divisors σ(n): 140143360
Sum of proper divisors (its aliquot sum) s(n): 1751871
138391489 is a deficient number, because the sum of its proper divisors (1751871) is less than itself. Its deficiency is 136639618

Bases of 138391489

Binary: 1000001111111010111111000001₂
Hexadecimal: 0x83FAFC1
Base-36: 2AE7K1

Squares and roots of 138391489

138391489 squared (138391489²) is 19152204227637121
138391489 cubed (138391489³) is 2650502060694796126863169
The square root of 138391489 is 11763.9912019689
The cube root of 138391489 is 517.2531300125

Scales and comparisons

How big is 138391489?

138,391,489 seconds is equal to 4 years, 20 weeks, 5 days, 18 hours, 4 minutes, 49 seconds.
To count from 1 to 138,391,489 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 138391489 cubic inches would be around 43.1 feet tall.

Recreational maths with 138391489

138391489 backwards is 984193831
The number of decimal digits it has is: 9
The sum of 138391489's digits is 46
More coming soon!

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The information we have on file for 138391489 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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