# 20542

## 20,542 is an even composite number composed of two prime numbers multiplied together.

What does the number 20542 look like?

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

20542 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 20542:

### 2 × 10271

See below for interesting mathematical facts about the number 20542 from the Numbermatics database.

### Names of 20542

• Cardinal: 20542 can be written as Twenty thousand, five hundred forty-two.

### Scientific notation

• Scientific notation: 2.0542 × 104

### Factors of 20542

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 10273

### Divisors of 20542

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 30816
• Sum of proper divisors (its aliquot sum) s(n): 10274
• 20542 is a deficient number, because the sum of its proper divisors (10274) is less than itself. Its deficiency is 10268

### Bases of 20542

• Binary: 1010000001111102
• Base-36: FUM

### Squares and roots of 20542

• 20542 squared (205422) is 421973764
• 20542 cubed (205423) is 8668185060088
• The square root of 20542 is 143.3248059479
• The cube root of 20542 is 27.3871963195

### Scales and comparisons

How big is 20542?
• 20,542 seconds is equal to 5 hours, 42 minutes, 22 seconds.
• To count from 1 to 20,542 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 20542 cubic inches would be around 2.3 feet tall.

### Recreational maths with 20542

• 20542 backwards is 24502
• The number of decimal digits it has is: 5
• The sum of 20542's digits is 13
• More coming soon!