# 538

## 538 is an even composite number composed of two prime numbers multiplied together.

What does the number 538 look like?

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

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

## Prime factorization of 538:

### 2 × 269

See below for interesting mathematical facts about the number 538 from the Numbermatics database.

### Names of 538

• Cardinal: 538 can be written as Five hundred thirty-eight.

### Scientific notation

• Scientific notation: 5.38 × 102

### Factors of 538

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 271

### Divisors of 538

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 810
• Sum of proper divisors (its aliquot sum) s(n): 272
• 538 is a deficient number, because the sum of its proper divisors (272) is less than itself. Its deficiency is 266

### Bases of 538

• Binary: 10000110102
• Base-36: EY

### Squares and roots of 538

• 538 squared (5382) is 289444
• 538 cubed (5383) is 155720872
• The square root of 538 is 23.1948270095
• The cube root of 538 is 8.1331870141

### Scales and comparisons

How big is 538?
• 538 seconds is equal to 8 minutes, 58 seconds.
• To count from 1 to 538 would take you about four minutes.

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 538 cubic inches would be around 0.7 feet tall.

### Recreational maths with 538

• 538 backwards is 835
• The number of decimal digits it has is: 3
• The sum of 538's digits is 16
• More coming soon!