# 2687

## 2,687 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 2687 look like?

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

2687 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 2687:

### 2687

See below for interesting mathematical facts about the number 2687 from the Numbermatics database.

### Names of 2687

• Cardinal: 2687 can be written as Two thousand, six hundred eighty-seven.

### Scientific notation

• Scientific notation: 2.687 × 103

### Factors of 2687

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 2687

### Divisors of 2687

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 2688
• Sum of proper divisors (its aliquot sum) s(n): 1
• 2687 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 2686

### Bases of 2687

• Binary: 1010011111112
• Base-36: 22N

### Squares and roots of 2687

• 2687 squared (26872) is 7219969
• 2687 cubed (26873) is 19400056703
• The square root of 2687 is 51.8362807307
• The cube root of 2687 is 13.9023821461

### Scales and comparisons

How big is 2687?
• 2,687 seconds is equal to 44 minutes, 47 seconds.
• To count from 1 to 2,687 would take you about forty-four 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 2687 cubic inches would be around 1.2 feet tall.

### Recreational maths with 2687

• 2687 backwards is 7862
• 2687 is a twin prime! Its twin is 2689
• The number of decimal digits it has is: 4
• The sum of 2687's digits is 23
• More coming soon!