# 15916

## 15,916 is an even composite number composed of three prime numbers multiplied together.

What does the number 15916 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

15916 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

## Prime factorization of 15916:

### 22 × 23 × 173

(2 × 2 × 23 × 173)

See below for interesting mathematical facts about the number 15916 from the Numbermatics database.

### Names of 15916

• Cardinal: 15916 can be written as Fifteen thousand, nine hundred sixteen.

### Scientific notation

• Scientific notation: 1.5916 × 104

### Factors of 15916

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 198

### Divisors of 15916

• Number of divisors d(n): 12
• Complete list of divisors:
• Sum of all divisors σ(n): 29232
• Sum of proper divisors (its aliquot sum) s(n): 13316
• 15916 is a deficient number, because the sum of its proper divisors (13316) is less than itself. Its deficiency is 2600

### Bases of 15916

• Binary: 111110001011002
• Base-36: CA4

### Squares and roots of 15916

• 15916 squared (159162) is 253319056
• 15916 cubed (159163) is 4031826095296
• The square root of 15916 is 126.1586303033
• The cube root of 15916 is 25.1542463651

### Scales and comparisons

How big is 15916?
• 15,916 seconds is equal to 4 hours, 25 minutes, 16 seconds.
• To count from 1 to 15,916 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 15916 cubic inches would be around 2.1 feet tall.

### Recreational maths with 15916

• 15916 backwards is 61951
• The number of decimal digits it has is: 5
• The sum of 15916's digits is 22
• More coming soon!