138305

138,305 is an odd composite number composed of three prime numbers multiplied together.

What does the number 138305 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

138305 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 138305:

5 × 139 × 199

See below for interesting mathematical facts about the number 138305 from the Numbermatics database.

Names of 138305

Cardinal: 138305 can be written as One hundred thirty-eight thousand, three hundred five.

Scientific notation

Scientific notation: 1.38305 × 10⁵

Factors of 138305

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 343

Divisors of 138305

Number of divisors d(n): 8
Complete list of divisors:
1 5 139 199 695 995 27661 138305
Sum of all divisors σ(n): 168000
Sum of proper divisors (its aliquot sum) s(n): 29695
138305 is a deficient number, because the sum of its proper divisors (29695) is less than itself. Its deficiency is 108610

Bases of 138305

Binary: 100001110001000001₂
Hexadecimal: 0x21C41
Base-36: 2YPT

Squares and roots of 138305

138305 squared (138305²) is 19128273025
138305 cubed (138305³) is 2645535800722625
The square root of 138305 is 371.8938020457
The cube root of 138305 is 51.7145353567

Scales and comparisons

How big is 138305?

138,305 seconds is equal to 1 day, 14 hours, 25 minutes, 5 seconds.
To count from 1 to 138,305 would take you about fourteen hours.

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 138305 cubic inches would be around 4.3 feet tall.

Recreational maths with 138305

138305 backwards is 503831
The number of decimal digits it has is: 6
The sum of 138305's digits is 20
More coming soon!

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The information we have on file for 138305 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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