# 12720

## 12,720 is an even composite number composed of four prime numbers multiplied together.

What does the number 12720 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 40 divisors.

12720 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty divisors.

## Prime factorization of 12720:

### 24 × 3 × 5 × 53

(2 × 2 × 2 × 2 × 3 × 5 × 53)

See below for interesting mathematical facts about the number 12720 from the Numbermatics database.

### Names of 12720

• Cardinal: 12720 can be written as Twelve thousand, seven hundred twenty.

### Scientific notation

• Scientific notation: 1.272 × 104

### Factors of 12720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 63

### Divisors of 12720

• Number of divisors d(n): 40
• Complete list of divisors:
• Sum of all divisors σ(n): 40176
• Sum of proper divisors (its aliquot sum) s(n): 27456
• 12720 is an abundant number, because the sum of its proper divisors (27456) is greater than itself. Its abundance is 14736

### Bases of 12720

• Binary: 110001101100002
• Base-36: 9TC

### Squares and roots of 12720

• 12720 squared (127202) is 161798400
• 12720 cubed (127203) is 2058075648000
• The square root of 12720 is 112.7829774389
• The cube root of 12720 is 23.3433063945

### Scales and comparisons

How big is 12720?
• 12,720 seconds is equal to 3 hours, 32 minutes.
• To count from 1 to 12,720 would take you about three 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 12720 cubic inches would be around 1.9 feet tall.

### Recreational maths with 12720

• 12720 backwards is 02721
• 12720 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 12720's digits is 12
• More coming soon!