# 18311

## 18,311 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 18311 look like?

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

18311 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 18311:

### 18311

See below for interesting mathematical facts about the number 18311 from the Numbermatics database.

### Names of 18311

• Cardinal: 18311 can be written as Eighteen thousand, three hundred eleven.

### Scientific notation

• Scientific notation: 1.8311 × 104

### Factors of 18311

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 18311

### Divisors of 18311

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 18312
• Sum of proper divisors (its aliquot sum) s(n): 1
• 18311 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 18310

### Bases of 18311

• Binary: 1000111100001112
• Base-36: E4N

### Squares and roots of 18311

• 18311 squared (183112) is 335292721
• 18311 cubed (183113) is 6139545014231
• The square root of 18311 is 135.3181436467
• The cube root of 18311 is 26.3574882071

### Scales and comparisons

How big is 18311?
• 18,311 seconds is equal to 5 hours, 5 minutes, 11 seconds.
• To count from 1 to 18,311 would take you about five 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 18311 cubic inches would be around 2.2 feet tall.

### Recreational maths with 18311

• 18311 backwards is 11381
• 18311 is a twin prime! Its twin is 18313
• The number of decimal digits it has is: 5
• The sum of 18311's digits is 14
• More coming soon!

MLA style:
"Number 18311 - Facts about the integer". Numbermatics.com. 2022. Web. 24 January 2022.

APA style:
Numbermatics. (2022). Number 18311 - Facts about the integer. Retrieved 24 January 2022, from https://numbermatics.com/n/18311/

Chicago style:
Numbermatics. 2022. "Number 18311 - Facts about the integer". https://numbermatics.com/n/18311/

The information we have on file for 18311 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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