138723690

138,723,690 is an even composite number composed of five prime numbers multiplied together.

What does the number 138723690 look like?

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

138723690 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 138723690:

2 × 3 × 5 × 7 × 660589

See below for interesting mathematical facts about the number 138723690 from the Numbermatics database.

Names of 138723690

Cardinal: 138723690 can be written as One hundred thirty-eight million, seven hundred twenty-three thousand, six hundred ninety.

Scientific notation

Scientific notation: 1.3872369 × 10⁸

Factors of 138723690

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 5
Sum of prime factors: 660606

Divisors of 138723690

Number of divisors d(n): 32
Complete list of divisors:
1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 660589 1321178 1981767 3302945 3963534 4624123 6605890 9248246 9908835 13872369 19817670 23120615 27744738 46241230 69361845 138723690
Sum of all divisors σ(n): 380499840
Sum of proper divisors (its aliquot sum) s(n): 241776150
138723690 is an abundant number, because the sum of its proper divisors (241776150) is greater than itself. Its abundance is 103052460

Bases of 138723690

Binary: 1000010001001100000101101010₂
Hexadecimal: 0x844C16A
Base-36: 2ALBVU

Squares and roots of 138723690

138723690 squared (138723690²) is 19244262167216100
138723690 cubed (138723690³) is 2669635059163614419409000
The square root of 138723690 is 11778.1021391393
The cube root of 138723690 is 517.6666783221

Scales and comparisons

How big is 138723690?

138,723,690 seconds is equal to 4 years, 21 weeks, 2 days, 14 hours, 21 minutes, 30 seconds.
To count from 1 to 138,723,690 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 138723690 cubic inches would be around 43.1 feet tall.

Recreational maths with 138723690

138723690 backwards is 096327831
The number of decimal digits it has is: 9
The sum of 138723690's digits is 39
More coming soon!

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The information we have on file for 138723690 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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