# 21010

## 21,010 is an even composite number composed of four prime numbers multiplied together.

What does the number 21010 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

21010 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

## Prime factorization of 21010:

### 2 × 5 × 11 × 191

See below for interesting mathematical facts about the number 21010 from the Numbermatics database.

### Names of 21010

• Cardinal: 21010 can be written as Twenty-one thousand and ten.

### Scientific notation

• Scientific notation: 2.101 × 104

### Factors of 21010

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 209

### Divisors of 21010

• Number of divisors d(n): 16
• Complete list of divisors:
• Sum of all divisors σ(n): 41472
• Sum of proper divisors (its aliquot sum) s(n): 20462
• 21010 is a deficient number, because the sum of its proper divisors (20462) is less than itself. Its deficiency is 548

### Bases of 21010

• Binary: 1010010000100102
• Base-36: G7M

### Squares and roots of 21010

• 21010 squared (210102) is 441420100
• 21010 cubed (210103) is 9274236301000
• The square root of 21010 is 144.9482666333
• The cube root of 21010 is 27.5936203137

### Scales and comparisons

How big is 21010?
• 21,010 seconds is equal to 5 hours, 50 minutes, 10 seconds.
• To count from 1 to 21,010 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 21010 cubic inches would be around 2.3 feet tall.

### Recreational maths with 21010

• 21010 backwards is 01012
• The number of decimal digits it has is: 5
• The sum of 21010's digits is 4
• More coming soon!