# 47981

## 47,981 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 47981 look like?

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

47981 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 47981:

### 47981

See below for interesting mathematical facts about the number 47981 from the Numbermatics database.

### Names of 47981

• Cardinal: 47981 can be written as Forty-seven thousand, nine hundred eighty-one.

### Scientific notation

• Scientific notation: 4.7981 × 104

### Factors of 47981

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 47981

### Divisors of 47981

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 47982
• Sum of proper divisors (its aliquot sum) s(n): 1
• 47981 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 47980

### Bases of 47981

• Binary: 10111011011011012
• Base-36: 110T

### Squares and roots of 47981

• 47981 squared (479812) is 2302176361
• 47981 cubed (479813) is 110460723977141
• The square root of 47981 is 219.0456573411
• The cube root of 47981 is 36.3376160445

### Scales and comparisons

How big is 47981?
• 47,981 seconds is equal to 13 hours, 19 minutes, 41 seconds.
• To count from 1 to 47,981 would take you about thirteen 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 47981 cubic inches would be around 3 feet tall.

### Recreational maths with 47981

• 47981 backwards is 18974
• The number of decimal digits it has is: 5
• The sum of 47981's digits is 29
• More coming soon!

MLA style:
"Number 47981 - Facts about the integer". Numbermatics.com. 2021. Web. 2 December 2021.

APA style:
Numbermatics. (2021). Number 47981 - Facts about the integer. Retrieved 2 December 2021, from https://numbermatics.com/n/47981/

Chicago style:
Numbermatics. 2021. "Number 47981 - Facts about the integer". https://numbermatics.com/n/47981/

The information we have on file for 47981 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!

Keywords: Divisors of 47981, math, Factors of 47981, curriculum, school, college, exams, university, Prime factorization of 47981, STEM, science, technology, engineering, physics, economics, calculator, forty-seven thousand, nine hundred eighty-one.

Oh no. Javascript is switched off in your browser.
Some bits of this website may not work unless you switch it on.