# 81648

## 81,648 is an even composite number composed of three prime numbers multiplied together.

What does the number 81648 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 70 divisors.

81648 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of seventy divisors.

## Prime factorization of 81648:

### 24 × 36 × 7

(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 7)

See below for interesting mathematical facts about the number 81648 from the Numbermatics database.

### Names of 81648

• Cardinal: 81648 can be written as Eighty-one thousand, six hundred forty-eight.

### Scientific notation

• Scientific notation: 8.1648 × 104

### Factors of 81648

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 12

### Divisors of 81648

• Number of divisors d(n): 70
• Complete list of divisors:
• Sum of all divisors σ(n): 271064
• Sum of proper divisors (its aliquot sum) s(n): 189416
• 81648 is an abundant number, because the sum of its proper divisors (189416) is greater than itself. Its abundance is 107768

### Bases of 81648

• Binary: 100111110111100002
• Base-36: 1R00

### Squares and roots of 81648

• 81648 squared (816482) is 6666395904
• 81648 cubed (816483) is 544297892769792
• The square root of 81648 is 285.7411415951
• The cube root of 81648 is 43.3825607551

### Scales and comparisons

How big is 81648?
• 81,648 seconds is equal to 22 hours, 40 minutes, 48 seconds.
• To count from 1 to 81,648 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 81648 cubic inches would be around 3.6 feet tall.

### Recreational maths with 81648

• 81648 backwards is 84618
• 81648 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 81648's digits is 27
• More coming soon!