# 266

## 266 is an even composite number composed of three prime numbers multiplied together.

What does the number 266 look like?

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

266 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 266:

### 2 × 7 × 19

See below for interesting mathematical facts about the number 266 from the Numbermatics database.

### Names of 266

• Cardinal: 266 can be written as Two hundred sixty-six.

### Scientific notation

• Scientific notation: 2.66 × 102

### Factors of 266

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 28

### Divisors of 266

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 480
• Sum of proper divisors (its aliquot sum) s(n): 214
• 266 is a deficient number, because the sum of its proper divisors (214) is less than itself. Its deficiency is 52

### Bases of 266

• Binary: 1000010102
• Base-36: 7E

### Squares and roots of 266

• 266 squared (2662) is 70756
• 266 cubed (2663) is 18821096
• The square root of 266 is 16.3095064303
• The cube root of 266 is 6.4312275913

### Scales and comparisons

How big is 266?
• 266 seconds is equal to 4 minutes, 26 seconds.
• To count from 1 to 266 would take you about two 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 266 cubic inches would be around 0.5 feet tall.

### Recreational maths with 266

• 266 backwards is 662
• 266 is a Harshad number.
• The number of decimal digits it has is: 3
• The sum of 266's digits is 14
• More coming soon!