# 71728

## 71,728 is an even composite number composed of two prime numbers multiplied together.

What does the number 71728 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 10 divisors.

71728 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of ten divisors.

## Prime factorization of 71728:

### 24 × 4483

(2 × 2 × 2 × 2 × 4483)

See below for interesting mathematical facts about the number 71728 from the Numbermatics database.

### Names of 71728

• Cardinal: 71728 can be written as Seventy-one thousand, seven hundred twenty-eight.

### Scientific notation

• Scientific notation: 7.1728 × 104

### Factors of 71728

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 4485

### Divisors of 71728

• Number of divisors d(n): 10
• Complete list of divisors:
• Sum of all divisors σ(n): 139004
• Sum of proper divisors (its aliquot sum) s(n): 67276
• 71728 is a deficient number, because the sum of its proper divisors (67276) is less than itself. Its deficiency is 4452

### Bases of 71728

• Binary: 100011000001100002
• Base-36: 1JCG

### Squares and roots of 71728

• 71728 squared (717282) is 5144905984
• 71728 cubed (717283) is 369033816420352
• The square root of 71728 is 267.8208356345
• The cube root of 71728 is 41.5492230567

### Scales and comparisons

How big is 71728?
• 71,728 seconds is equal to 19 hours, 55 minutes, 28 seconds.
• To count from 1 to 71,728 would take you about nineteen 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 71728 cubic inches would be around 3.5 feet tall.

### Recreational maths with 71728

• 71728 backwards is 82717
• The number of decimal digits it has is: 5
• The sum of 71728's digits is 25
• More coming soon!