# 2791

## 2,791 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 2791 look like?

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

2791 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 2791:

### 2791

See below for interesting mathematical facts about the number 2791 from the Numbermatics database.

### Names of 2791

• Cardinal: 2791 can be written as Two thousand, seven hundred ninety-one.

### Scientific notation

• Scientific notation: 2.791 × 103

### Factors of 2791

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 2791

### Divisors of 2791

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 2792
• Sum of proper divisors (its aliquot sum) s(n): 1
• 2791 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 2790

### Bases of 2791

• Binary: 1010111001112
• Base-36: 25J

### Squares and roots of 2791

• 2791 squared (27912) is 7789681
• 2791 cubed (27913) is 21740999671
• The square root of 2791 is 52.8299157673
• The cube root of 2791 is 14.0794799007

### Scales and comparisons

How big is 2791?
• 2,791 seconds is equal to 46 minutes, 31 seconds.
• To count from 1 to 2,791 would take you about forty-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 2791 cubic inches would be around 1.2 feet tall.

### Recreational maths with 2791

• 2791 backwards is 1972
• The number of decimal digits it has is: 4
• The sum of 2791's digits is 19
• More coming soon!