# 2666

## 2,666 is an even composite number composed of three prime numbers multiplied together.

What does the number 2666 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

2666 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

## Prime factorization of 2666:

### 2 × 31 × 43

See below for interesting mathematical facts about the number 2666 from the Numbermatics database.

### Names of 2666

• Cardinal: 2666 can be written as Two thousand, six hundred sixty-six.

### Scientific notation

• Scientific notation: 2.666 × 103

### Factors of 2666

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 76

### Divisors of 2666

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 4224
• Sum of proper divisors (its aliquot sum) s(n): 1558
• 2666 is a deficient number, because the sum of its proper divisors (1558) is less than itself. Its deficiency is 1108

### Bases of 2666

• Binary: 1010011010102
• Base-36: 222

### Squares and roots of 2666

• 2666 squared (26662) is 7107556
• 2666 cubed (26663) is 18948744296
• The square root of 2666 is 51.6333225737
• The cube root of 2666 is 13.8660697885

### Scales and comparisons

How big is 2666?
• 2,666 seconds is equal to 44 minutes, 26 seconds.
• To count from 1 to 2,666 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 2666 cubic inches would be around 1.2 feet tall.

### Recreational maths with 2666

• 2666 backwards is 6662
• The number of decimal digits it has is: 4
• The sum of 2666's digits is 20
• More coming soon!