# 21234

## 21,234 is an even composite number composed of three prime numbers multiplied together.

What does the number 21234 look like?

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

21234 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

## Prime factorization of 21234:

### 2 × 3 × 3539

See below for interesting mathematical facts about the number 21234 from the Numbermatics database.

### Names of 21234

• Cardinal: 21234 can be written as Twenty-one thousand, two hundred thirty-four.

### Scientific notation

• Scientific notation: 2.1234 × 104

### Factors of 21234

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 3544

### Divisors of 21234

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 42480
• Sum of proper divisors (its aliquot sum) s(n): 21246
• 21234 is an abundant number, because the sum of its proper divisors (21246) is greater than itself. Its abundance is 12

### Bases of 21234

• Binary: 1010010111100102
• Base-36: GDU

### Squares and roots of 21234

• 21234 squared (212342) is 450882756
• 21234 cubed (212343) is 9574044440904
• The square root of 21234 is 145.7189074897
• The cube root of 21234 is 27.6913378103

### Scales and comparisons

How big is 21234?
• 21,234 seconds is equal to 5 hours, 53 minutes, 54 seconds.
• To count from 1 to 21,234 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 21234 cubic inches would be around 2.3 feet tall.

### Recreational maths with 21234

• 21234 backwards is 43212
• The number of decimal digits it has is: 5
• The sum of 21234's digits is 12
• More coming soon!