# 27720

## 27,720 is an even composite number composed of five prime numbers multiplied together.

What does the number 27720 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 96 divisors.

27720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.

## Prime factorization of 27720:

### 23 × 32 × 5 × 7 × 11

(2 × 2 × 2 × 3 × 3 × 5 × 7 × 11)

See below for interesting mathematical facts about the number 27720 from the Numbermatics database.

### Names of 27720

• Cardinal: 27720 can be written as Twenty-seven thousand, seven hundred twenty.

### Scientific notation

• Scientific notation: 2.772 × 104

### Factors of 27720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 28

### Divisors of 27720

• Number of divisors d(n): 96
• Complete list of divisors:
• Sum of all divisors σ(n): 112320
• Sum of proper divisors (its aliquot sum) s(n): 84600
• 27720 is an abundant number, because the sum of its proper divisors (84600) is greater than itself. Its abundance is 56880

### Bases of 27720

• Binary: 1101100010010002
• Base-36: LE0

### Squares and roots of 27720

• 27720 squared (277202) is 768398400
• 27720 cubed (277203) is 21300003648000
• The square root of 27720 is 166.4932431061
• The cube root of 27720 is 30.2643308007

### Scales and comparisons

How big is 27720?
• 27,720 seconds is equal to 7 hours, 42 minutes.
• To count from 1 to 27,720 would take you about seven hours.

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 27720 cubic inches would be around 2.5 feet tall.

### Recreational maths with 27720

• 27720 backwards is 02772
• 27720 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 27720's digits is 18
• More coming soon!