# 21167

## 21,167 is an odd composite number composed of two prime numbers multiplied together.

What does the number 21167 look like?

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

21167 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 21167:

### 61 × 347

See below for interesting mathematical facts about the number 21167 from the Numbermatics database.

### Names of 21167

• Cardinal: 21167 can be written as Twenty-one thousand, one hundred sixty-seven.

### Scientific notation

• Scientific notation: 2.1167 × 104

### Factors of 21167

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 408

### Divisors of 21167

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 21576
• Sum of proper divisors (its aliquot sum) s(n): 409
• 21167 is a deficient number, because the sum of its proper divisors (409) is less than itself. Its deficiency is 20758

### Bases of 21167

• Binary: 1010010101011112
• Base-36: GBZ

### Squares and roots of 21167

• 21167 squared (211672) is 448041889
• 21167 cubed (211673) is 9483702664463
• The square root of 21167 is 145.4888311865
• The cube root of 21167 is 27.6621821411

### Scales and comparisons

How big is 21167?
• 21,167 seconds is equal to 5 hours, 52 minutes, 47 seconds.
• To count from 1 to 21,167 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 21167 cubic inches would be around 2.3 feet tall.

### Recreational maths with 21167

• 21167 backwards is 76112
• The number of decimal digits it has is: 5
• The sum of 21167's digits is 17
• More coming soon!