138021487

138,021,487 is an odd composite number composed of three prime numbers multiplied together.

What does the number 138021487 look like?

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

138021487 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 138021487:

17² × 53 × 9011

(17 × 17 × 53 × 9011)

See below for interesting mathematical facts about the number 138021487 from the Numbermatics database.

Names of 138021487

Cardinal: 138021487 can be written as One hundred thirty-eight million, twenty-one thousand, four hundred eighty-seven.

Scientific notation

Scientific notation: 1.38021487 × 10⁸

Factors of 138021487

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 9081

Divisors of 138021487

Number of divisors d(n): 12
Complete list of divisors:
1 17 53 289 901 9011 15317 153187 477583 2604179 8118911 138021487
Sum of all divisors σ(n): 149400936
Sum of proper divisors (its aliquot sum) s(n): 11379449
138021487 is a deficient number, because the sum of its proper divisors (11379449) is less than itself. Its deficiency is 126642038

Bases of 138021487

Binary: 1000001110100000101001101111₂
Hexadecimal: 0x83A0A6F
Base-36: 2A6A27

Squares and roots of 138021487

138021487 squared (138021487²) is 19049930873691169
138021487 cubed (138021487³) is 2629299786434064324148303
The square root of 138021487 is 11748.2546363279
The cube root of 138021487 is 516.7917444433

Scales and comparisons

How big is 138021487?

138,021,487 seconds is equal to 4 years, 20 weeks, 1 day, 11 hours, 18 minutes, 7 seconds.
To count from 1 to 138,021,487 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 138021487 cubic inches would be around 43.1 feet tall.

Recreational maths with 138021487

138021487 backwards is 784120831
The number of decimal digits it has is: 9
The sum of 138021487's digits is 34
More coming soon!

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The information we have on file for 138021487 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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