# 9720

## 9,720 is an even composite number composed of three prime numbers multiplied together.

What does the number 9720 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 48 divisors.

9720 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of forty-eight divisors.

## Prime factorization of 9720:

### 23 × 35 × 5

(2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 5)

See below for interesting mathematical facts about the number 9720 from the Numbermatics database.

### Names of 9720

• Cardinal: 9720 can be written as Nine thousand, seven hundred twenty.

### Scientific notation

• Scientific notation: 9.72 × 103

### Factors of 9720

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 10

### Divisors of 9720

• Number of divisors d(n): 48
• Complete list of divisors:
• Sum of all divisors σ(n): 32760
• Sum of proper divisors (its aliquot sum) s(n): 23040
• 9720 is an abundant number, because the sum of its proper divisors (23040) is greater than itself. Its abundance is 13320

### Bases of 9720

• Binary: 100101111110002
• Base-36: 7I0

### Squares and roots of 9720

• 9720 squared (97202) is 94478400
• 9720 cubed (97203) is 918330048000
• The square root of 9720 is 98.5900603509
• The cube root of 9720 is 21.3413598269

### Scales and comparisons

How big is 9720?
• 9,720 seconds is equal to 2 hours, 42 minutes.
• To count from 1 to 9,720 would take you about two 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 9720 cubic inches would be around 1.8 feet tall.

### Recreational maths with 9720

• 9720 backwards is 0279
• 9720 is a Harshad number.
• The number of decimal digits it has is: 4
• The sum of 9720's digits is 18
• More coming soon!