# 15680

## 15,680 is an even composite number composed of three prime numbers multiplied together.

What does the number 15680 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 42 divisors.

15680 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of forty-two divisors.

## Prime factorization of 15680:

### 26 × 5 × 72

(2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7)

See below for interesting mathematical facts about the number 15680 from the Numbermatics database.

### Names of 15680

• Cardinal: 15680 can be written as Fifteen thousand, six hundred eighty.

### Scientific notation

• Scientific notation: 1.568 × 104

### Factors of 15680

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 14

### Divisors of 15680

• Number of divisors d(n): 42
• Complete list of divisors:
• Sum of all divisors σ(n): 43434
• Sum of proper divisors (its aliquot sum) s(n): 27754
• 15680 is an abundant number, because the sum of its proper divisors (27754) is greater than itself. Its abundance is 12074

### Bases of 15680

• Binary: 111101010000002
• Base-36: C3K

### Squares and roots of 15680

• 15680 squared (156802) is 245862400
• 15680 cubed (156803) is 3855122432000
• The square root of 15680 is 125.2198067399
• The cube root of 15680 is 25.0292989827

### Scales and comparisons

How big is 15680?
• 15,680 seconds is equal to 4 hours, 21 minutes, 20 seconds.
• To count from 1 to 15,680 would take you about four 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 15680 cubic inches would be around 2.1 feet tall.

### Recreational maths with 15680

• 15680 backwards is 08651
• 15680 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 15680's digits is 20
• More coming soon!