# 138739

## 138,739 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 138739 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

138739 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 138739:

### 138739

See below for interesting mathematical facts about the number 138739 from the Numbermatics database.

### Names of 138739

• Cardinal: 138739 can be written as One hundred thirty-eight thousand, seven hundred thirty-nine.

### Scientific notation

• Scientific notation: 1.38739 × 105

### Factors of 138739

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 138739

### Divisors of 138739

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 138740
• Sum of proper divisors (its aliquot sum) s(n): 1
• 138739 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 138738

### Bases of 138739

• Binary: 1000011101111100112
• Base-36: 2Z1V

### Squares and roots of 138739

• 138739 squared (1387392) is 19248510121
• 138739 cubed (1387393) is 2670519045677419
• The square root of 138739 is 372.4768449179
• The cube root of 138739 is 51.7685721417

### Scales and comparisons

How big is 138739?
• 138,739 seconds is equal to 1 day, 14 hours, 32 minutes, 19 seconds.
• To count from 1 to 138,739 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 138739 cubic inches would be around 4.3 feet tall.

### Recreational maths with 138739

• 138739 backwards is 937831
• The number of decimal digits it has is: 6
• The sum of 138739's digits is 31
• More coming soon!

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The information we have on file for 138739 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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