# 81222

## 81,222 is an even composite number composed of three prime numbers multiplied together.

What does the number 81222 look like?

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

81222 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 81222:

### 2 × 3 × 13537

See below for interesting mathematical facts about the number 81222 from the Numbermatics database.

### Names of 81222

• Cardinal: 81222 can be written as Eighty-one thousand, two hundred twenty-two.

### Scientific notation

• Scientific notation: 8.1222 × 104

### Factors of 81222

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 13542

### Divisors of 81222

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 162456
• Sum of proper divisors (its aliquot sum) s(n): 81234
• 81222 is an abundant number, because the sum of its proper divisors (81234) is greater than itself. Its abundance is 12

### Bases of 81222

• Binary: 100111101010001102
• Base-36: 1QO6

### Squares and roots of 81222

• 81222 squared (812222) is 6597013284
• 81222 cubed (812223) is 535822612953048
• The square root of 81222 is 284.9947367935
• The cube root of 81222 is 43.3069793735

### Scales and comparisons

How big is 81222?
• 81,222 seconds is equal to 22 hours, 33 minutes, 42 seconds.
• To count from 1 to 81,222 would take you about twenty-two 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 81222 cubic inches would be around 3.6 feet tall.

### Recreational maths with 81222

• 81222 backwards is 22218
• The number of decimal digits it has is: 5
• The sum of 81222's digits is 15
• More coming soon!