# 82981

## 82,981 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 82981 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

82981 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 82981:

### 82981

See below for interesting mathematical facts about the number 82981 from the Numbermatics database.

### Names of 82981

• Cardinal: 82981 can be written as Eighty-two thousand, nine hundred eighty-one.

### Scientific notation

• Scientific notation: 8.2981 × 104

### Factors of 82981

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 82981

### Divisors of 82981

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 82982
• Sum of proper divisors (its aliquot sum) s(n): 1
• 82981 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 82980

### Bases of 82981

• Binary: 101000100001001012
• Base-36: 1S11

### Squares and roots of 82981

• 82981 squared (829812) is 6885846361
• 82981 cubed (829813) is 571394416882141
• The square root of 82981 is 288.0642289491
• The cube root of 82981 is 43.6173779729

### Scales and comparisons

How big is 82981?
• 82,981 seconds is equal to 23 hours, 3 minutes, 1 second.
• To count from 1 to 82,981 would take you about twenty-three 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 82981 cubic inches would be around 3.6 feet tall.

### Recreational maths with 82981

• 82981 backwards is 18928
• The number of decimal digits it has is: 5
• The sum of 82981's digits is 28
• More coming soon!