# 791

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

What does the number 791 look like?

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

791 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 791:

### 7 × 113

See below for interesting mathematical facts about the number 791 from the Numbermatics database.

### Names of 791

• Cardinal: 791 can be written as Seven hundred ninety-one.

### Scientific notation

• Scientific notation: 7.91 × 102

### Factors of 791

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 120

### Divisors of 791

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 912
• Sum of proper divisors (its aliquot sum) s(n): 121
• 791 is a deficient number, because the sum of its proper divisors (121) is less than itself. Its deficiency is 670

### Bases of 791

• Binary: 11000101112
• Base-36: LZ

### Squares and roots of 791

• 791 squared (7912) is 625681
• 791 cubed (7913) is 494913671
• The square root of 791 is 28.1247222209
• The cube root of 791 is 9.2482343843

### Scales and comparisons

How big is 791?
• 791 seconds is equal to 13 minutes, 11 seconds.
• To count from 1 to 791 would take you about six 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 791 cubic inches would be around 0.8 feet tall.

### Recreational maths with 791

• 791 backwards is 197
• The number of decimal digits it has is: 3
• The sum of 791's digits is 17
• More coming soon!

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The information we have on file for 791 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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