# 22981

## 22,981 is an odd composite number composed of two prime numbers multiplied together.

What does the number 22981 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 8 divisors.

22981 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of eight divisors.

## Prime factorization of 22981:

### 73 × 67

(7 × 7 × 7 × 67)

See below for interesting mathematical facts about the number 22981 from the Numbermatics database.

### Names of 22981

• Cardinal: 22981 can be written as Twenty-two thousand, nine hundred eighty-one.

### Scientific notation

• Scientific notation: 2.2981 × 104

### Factors of 22981

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 74

### Divisors of 22981

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 27200
• Sum of proper divisors (its aliquot sum) s(n): 4219
• 22981 is a deficient number, because the sum of its proper divisors (4219) is less than itself. Its deficiency is 18762

### Bases of 22981

• Binary: 1011001110001012
• Base-36: HQD

### Squares and roots of 22981

• 22981 squared (229812) is 528126361
• 22981 cubed (229813) is 12136871902141
• The square root of 22981 is 151.5948547939
• The cube root of 22981 is 28.4308367031

### Scales and comparisons

How big is 22981?
• 22,981 seconds is equal to 6 hours, 23 minutes, 1 second.
• To count from 1 to 22,981 would take you about six 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 22981 cubic inches would be around 2.4 feet tall.

### Recreational maths with 22981

• 22981 backwards is 18922
• The number of decimal digits it has is: 5
• The sum of 22981's digits is 22
• More coming soon!