# 21271

## 21,271 is an odd composite number composed of two prime numbers multiplied together.

What does the number 21271 look like?

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

21271 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 21271:

### 89 × 239

See below for interesting mathematical facts about the number 21271 from the Numbermatics database.

### Names of 21271

• Cardinal: 21271 can be written as Twenty-one thousand, two hundred seventy-one.

### Scientific notation

• Scientific notation: 2.1271 × 104

### Factors of 21271

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 328

### Divisors of 21271

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 21600
• Sum of proper divisors (its aliquot sum) s(n): 329
• 21271 is a deficient number, because the sum of its proper divisors (329) is less than itself. Its deficiency is 20942

### Bases of 21271

• Binary: 1010011000101112
• Base-36: GEV

### Squares and roots of 21271

• 21271 squared (212712) is 452455441
• 21271 cubed (212713) is 9624179685511
• The square root of 21271 is 145.8458089899
• The cube root of 21271 is 27.7074124229

### Scales and comparisons

How big is 21271?
• 21,271 seconds is equal to 5 hours, 54 minutes, 31 seconds.
• To count from 1 to 21,271 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 21271 cubic inches would be around 2.3 feet tall.

### Recreational maths with 21271

• 21271 backwards is 17212
• The number of decimal digits it has is: 5
• The sum of 21271's digits is 13
• More coming soon!