# 2931

## 2,931 is an odd composite number composed of two prime numbers multiplied together.

What does the number 2931 look like?

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

2931 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 2931:

### 3 × 977

See below for interesting mathematical facts about the number 2931 from the Numbermatics database.

### Names of 2931

• Cardinal: 2931 can be written as Two thousand, nine hundred thirty-one.

### Scientific notation

• Scientific notation: 2.931 × 103

### Factors of 2931

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 980

### Divisors of 2931

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 3912
• Sum of proper divisors (its aliquot sum) s(n): 981
• 2931 is a deficient number, because the sum of its proper divisors (981) is less than itself. Its deficiency is 1950

### Bases of 2931

• Binary: 1011011100112
• Base-36: 29F

### Squares and roots of 2931

• 2931 squared (29312) is 8590761
• 2931 cubed (29313) is 25179520491
• The square root of 2931 is 54.1387107345
• The cube root of 2931 is 14.3110645129

### Scales and comparisons

How big is 2931?
• 2,931 seconds is equal to 48 minutes, 51 seconds.
• To count from 1 to 2,931 would take you about forty-eight 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 2931 cubic inches would be around 1.2 feet tall.

### Recreational maths with 2931

• 2931 backwards is 1392
• The number of decimal digits it has is: 4
• The sum of 2931's digits is 15
• More coming soon!