# 18005

## 18,005 is an odd composite number composed of three prime numbers multiplied together.

What does the number 18005 look like?

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

18005 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 18005:

### 5 × 13 × 277

See below for interesting mathematical facts about the number 18005 from the Numbermatics database.

### Names of 18005

• Cardinal: 18005 can be written as Eighteen thousand and five.

### Scientific notation

• Scientific notation: 1.8005 × 104

### Factors of 18005

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 295

### Divisors of 18005

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 23352
• Sum of proper divisors (its aliquot sum) s(n): 5347
• 18005 is a deficient number, because the sum of its proper divisors (5347) is less than itself. Its deficiency is 12658

### Bases of 18005

• Binary: 1000110010101012
• Hexadecimal: 0x4655
• Base-36: DW5

### Squares and roots of 18005

• 18005 squared (180052) is 324180025
• 18005 cubed (180053) is 5836861350125
• The square root of 18005 is 134.1827112559
• The cube root of 18005 is 26.2098403297

### Scales and comparisons

How big is 18005?
• 18,005 seconds is equal to 5 hours, 5 seconds.
• To count from 1 to 18,005 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 18005 cubic inches would be around 2.2 feet tall.

### Recreational maths with 18005

• 18005 backwards is 50081
• The number of decimal digits it has is: 5
• The sum of 18005's digits is 14
• More coming soon!

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The information we have on file for 18005 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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