# 138686

## 138,686 is an even composite number composed of three prime numbers multiplied together.

What does the number 138686 look like?

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

138686 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

## Prime factorization of 138686:

### 2 × 17 × 4079

See below for interesting mathematical facts about the number 138686 from the Numbermatics database.

### Names of 138686

• Cardinal: 138686 can be written as One hundred thirty-eight thousand, six hundred eighty-six.

### Scientific notation

• Scientific notation: 1.38686 × 105

### Factors of 138686

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 4098

### Divisors of 138686

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 220320
• Sum of proper divisors (its aliquot sum) s(n): 81634
• 138686 is a deficient number, because the sum of its proper divisors (81634) is less than itself. Its deficiency is 57052

### Bases of 138686

• Binary: 1000011101101111102
• Base-36: 2Z0E

### Squares and roots of 138686

• 138686 squared (1386862) is 19233806596
• 138686 cubed (1386863) is 2667459701572856
• The square root of 138686 is 372.4056927599
• The cube root of 138686 is 51.7619792257

### Scales and comparisons

How big is 138686?
• 138,686 seconds is equal to 1 day, 14 hours, 31 minutes, 26 seconds.
• To count from 1 to 138,686 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 138686 cubic inches would be around 4.3 feet tall.

### Recreational maths with 138686

• 138686 backwards is 686831
• The number of decimal digits it has is: 6
• The sum of 138686's digits is 32
• More coming soon!

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Chicago style:
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The information we have on file for 138686 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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