# 18039

## 18,039 is an odd composite number composed of three prime numbers multiplied together.

What does the number 18039 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

18039 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

## Prime factorization of 18039:

### 3 × 7 × 859

See below for interesting mathematical facts about the number 18039 from the Numbermatics database.

### Names of 18039

• Cardinal: 18039 can be written as Eighteen thousand and thirty-nine.

### Scientific notation

• Scientific notation: 1.8039 × 104

### Factors of 18039

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 869

### Divisors of 18039

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 27520
• Sum of proper divisors (its aliquot sum) s(n): 9481
• 18039 is a deficient number, because the sum of its proper divisors (9481) is less than itself. Its deficiency is 8558

### Bases of 18039

• Binary: 1000110011101112
• Base-36: DX3

### Squares and roots of 18039

• 18039 squared (180392) is 325405521
• 18039 cubed (180393) is 5869990193319
• The square root of 18039 is 134.3093444255
• The cube root of 18039 is 26.2263278653

### Scales and comparisons

How big is 18039?
• 18,039 seconds is equal to 5 hours, 39 seconds.
• To count from 1 to 18,039 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 18039 cubic inches would be around 2.2 feet tall.

### Recreational maths with 18039

• 18039 backwards is 93081
• 18039 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 18039's digits is 21
• More coming soon!