# 18000

## 18,000 is an even composite number composed of three prime numbers multiplied together.

What does the number 18000 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 60 divisors.

18000 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixty divisors.

## Prime factorization of 18000:

### 24 × 32 × 53

(2 × 2 × 2 × 2 × 3 × 3 × 5 × 5 × 5)

See below for interesting mathematical facts about the number 18000 from the Numbermatics database.

### Names of 18000

• Cardinal: 18000 can be written as Eighteen thousand.

### Scientific notation

• Scientific notation: 1.8 × 104

### Factors of 18000

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

### Divisors of 18000

• Number of divisors d(n): 60
• Complete list of divisors:
• Sum of all divisors σ(n): 62868
• Sum of proper divisors (its aliquot sum) s(n): 44868
• 18000 is an abundant number, because the sum of its proper divisors (44868) is greater than itself. Its abundance is 26868

### Bases of 18000

• Binary: 1000110010100002
• Base-36: DW0

### Squares and roots of 18000

• 18000 squared (180002) is 324000000
• 18000 cubed (180003) is 5832000000000
• The square root of 18000 is 134.1640786499
• The cube root of 18000 is 26.2074139423

### Scales and comparisons

How big is 18000?
• 18,000 seconds is equal to 5 hours.
• To count from 1 to 18,000 would take you about five 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 18000 cubic inches would be around 2.2 feet tall.

### Recreational maths with 18000

• 18000 backwards is 00081
• 18000 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 18000's digits is 9
• More coming soon!