# 667

## 667 is an odd composite number composed of two prime numbers multiplied together.

What does the number 667 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

667 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

## Prime factorization of 667:

### 23 × 29

See below for interesting mathematical facts about the number 667 from the Numbermatics database.

### Names of 667

• Cardinal: 667 can be written as Six hundred sixty-seven.

### Scientific notation

• Scientific notation: 6.67 × 102

### Factors of 667

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 52

### Divisors of 667

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 720
• Sum of proper divisors (its aliquot sum) s(n): 53
• 667 is a deficient number, because the sum of its proper divisors (53) is less than itself. Its deficiency is 614

### Bases of 667

• Binary: 10100110112
• Base-36: IJ

### Squares and roots of 667

• 667 squared (6672) is 444889
• 667 cubed (6673) is 296740963
• The square root of 667 is 25.8263431403
• The cube root of 667 is 8.7372603723

### Scales and comparisons

How big is 667?
• 667 seconds is equal to 11 minutes, 7 seconds.
• To count from 1 to 667 would take you about five 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 667 cubic inches would be around 0.7 feet tall.

### Recreational maths with 667

• 667 backwards is 766
• The number of decimal digits it has is: 3
• The sum of 667's digits is 19
• More coming soon!

MLA style:
"Number 667 - Facts about the integer". Numbermatics.com. 2021. Web. 23 October 2021.

APA style:
Numbermatics. (2021). Number 667 - Facts about the integer. Retrieved 23 October 2021, from https://numbermatics.com/n/667/

Chicago style:
Numbermatics. 2021. "Number 667 - Facts about the integer". https://numbermatics.com/n/667/

The information we have on file for 667 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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