# 872

## 872 is an even composite number composed of two prime numbers multiplied together.

What does the number 872 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 8 divisors.

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

## Prime factorization of 872:

### 23 × 109

(2 × 2 × 2 × 109)

See below for interesting mathematical facts about the number 872 from the Numbermatics database.

### Names of 872

• Cardinal: 872 can be written as Eight hundred seventy-two.

### Scientific notation

• Scientific notation: 8.72 × 102

### Factors of 872

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 111

### Divisors of 872

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 1650
• Sum of proper divisors (its aliquot sum) s(n): 778
• 872 is a deficient number, because the sum of its proper divisors (778) is less than itself. Its deficiency is 94

### Bases of 872

• Binary: 11011010002
• Base-36: O8

### Squares and roots of 872

• 872 squared (8722) is 760384
• 872 cubed (8723) is 663054848
• The square root of 872 is 29.5296461205
• The cube root of 872 is 9.5537123621

### Scales and comparisons

How big is 872?
• 872 seconds is equal to 14 minutes, 32 seconds.
• To count from 1 to 872 would take you about seven minutes.

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 872 cubic inches would be around 0.8 feet tall.

### Recreational maths with 872

• 872 backwards is 278
• The number of decimal digits it has is: 3
• The sum of 872's digits is 17
• More coming soon!

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"Number 872 - Facts about the integer". Numbermatics.com. 2023. Web. 7 June 2023.

APA style:
Numbermatics. (2023). Number 872 - Facts about the integer. Retrieved 7 June 2023, from https://numbermatics.com/n/872/

Chicago style:
Numbermatics. 2023. "Number 872 - Facts about the integer". https://numbermatics.com/n/872/

The information we have on file for 872 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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