# 18040

## 18,040 is an even composite number composed of four prime numbers multiplied together.

What does the number 18040 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

18040 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

## Prime factorization of 18040:

### 23 × 5 × 11 × 41

(2 × 2 × 2 × 5 × 11 × 41)

See below for interesting mathematical facts about the number 18040 from the Numbermatics database.

### Names of 18040

• Cardinal: 18040 can be written as Eighteen thousand and forty.

### Scientific notation

• Scientific notation: 1.804 × 104

### Factors of 18040

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 59

### Divisors of 18040

• Number of divisors d(n): 32
• Complete list of divisors:
• Sum of all divisors σ(n): 45360
• Sum of proper divisors (its aliquot sum) s(n): 27320
• 18040 is an abundant number, because the sum of its proper divisors (27320) is greater than itself. Its abundance is 9280

### Bases of 18040

• Binary: 1000110011110002
• Base-36: DX4

### Squares and roots of 18040

• 18040 squared (180402) is 325441600
• 18040 cubed (180403) is 5870966464000
• The square root of 18040 is 134.3130671231
• The cube root of 18040 is 26.2268124791

### Scales and comparisons

How big is 18040?
• 18,040 seconds is equal to 5 hours, 40 seconds.
• To count from 1 to 18,040 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 18040 cubic inches would be around 2.2 feet tall.

### Recreational maths with 18040

• 18040 backwards is 04081
• The number of decimal digits it has is: 5
• The sum of 18040's digits is 13
• More coming soon!