# 18157

## 18,157 is an odd composite number composed of two prime numbers multiplied together.

What does the number 18157 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

18157 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

## Prime factorization of 18157:

### 67 × 271

See below for interesting mathematical facts about the number 18157 from the Numbermatics database.

### Names of 18157

• Cardinal: 18157 can be written as Eighteen thousand, one hundred fifty-seven.

### Scientific notation

• Scientific notation: 1.8157 × 104

### Factors of 18157

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 338

### Divisors of 18157

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 18496
• Sum of proper divisors (its aliquot sum) s(n): 339
• 18157 is a deficient number, because the sum of its proper divisors (339) is less than itself. Its deficiency is 17818

### Bases of 18157

• Binary: 1000110111011012
• Base-36: E0D

### Squares and roots of 18157

• 18157 squared (181572) is 329676649
• 18157 cubed (181573) is 5985938915893
• The square root of 18157 is 134.7479127853
• The cube root of 18157 is 26.2833891071

### Scales and comparisons

How big is 18157?
• 18,157 seconds is equal to 5 hours, 2 minutes, 37 seconds.
• To count from 1 to 18,157 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 18157 cubic inches would be around 2.2 feet tall.

### Recreational maths with 18157

• 18157 backwards is 75181
• The number of decimal digits it has is: 5
• The sum of 18157's digits is 22
• More coming soon!