138390723

138,390,723 is an odd composite number composed of two prime numbers multiplied together.

What does the number 138390723 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

138390723 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 138390723:

3² × 15376747

(3 × 3 × 15376747)

See below for interesting mathematical facts about the number 138390723 from the Numbermatics database.

Names of 138390723

Cardinal: 138390723 can be written as One hundred thirty-eight million, three hundred ninety thousand, seven hundred twenty-three.

Scientific notation

Scientific notation: 1.38390723 × 10⁸

Factors of 138390723

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 15376750

Divisors of 138390723

Number of divisors d(n): 6
Complete list of divisors:
1 3 9 15376747 46130241 138390723
Sum of all divisors σ(n): 199897724
Sum of proper divisors (its aliquot sum) s(n): 61507001
138390723 is a deficient number, because the sum of its proper divisors (61507001) is less than itself. Its deficiency is 76883722

Bases of 138390723

Binary: 1000001111111010110011000011₂
Hexadecimal: 0x83FACC3
Base-36: 2AE6YR

Squares and roots of 138390723

138390723 squared (138390723²) is 19151992212462729
138390723 cubed (138390723³) is 2650458049173086676863067
The square root of 138390723 is 11763.9586449461
The cube root of 138390723 is 517.2521756749

Scales and comparisons

How big is 138390723?

138,390,723 seconds is equal to 4 years, 20 weeks, 5 days, 17 hours, 52 minutes, 3 seconds.
To count from 1 to 138,390,723 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 138390723 cubic inches would be around 43.1 feet tall.

Recreational maths with 138390723

138390723 backwards is 327093831
The number of decimal digits it has is: 9
The sum of 138390723's digits is 36
More coming soon!

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The information we have on file for 138390723 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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