# 730128

## 730,128 is an even composite number composed of five prime numbers multiplied together.

What does the number 730128 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 80 divisors.

730128 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.

## Prime factorization of 730128:

### 24 × 3 × 7 × 41 × 53

(2 × 2 × 2 × 2 × 3 × 7 × 41 × 53)

See below for interesting mathematical facts about the number 730128 from the Numbermatics database.

### Names of 730128

• Cardinal: 730128 can be written as Seven hundred thirty thousand, one hundred twenty-eight.

### Scientific notation

• Scientific notation: 7.30128 × 105

### Factors of 730128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 106

### Divisors of 730128

• Number of divisors d(n): 80
• Complete list of divisors:
• Sum of all divisors σ(n): 2249856
• Sum of proper divisors (its aliquot sum) s(n): 1519728
• 730128 is an abundant number, because the sum of its proper divisors (1519728) is greater than itself. Its abundance is 789600

### Bases of 730128

• Binary: 101100100100000100002
• Base-36: FNDC

### Squares and roots of 730128

• 730128 squared (7301282) is 533086896384
• 730128 cubed (7301283) is 389221669483057152
• The square root of 730128 is 854.4752775827
• The cube root of 730128 is 90.0463958315

### Scales and comparisons

How big is 730128?
• 730,128 seconds is equal to 10 hours, 48 minutes, 48 seconds.
• To count from 1 to 730,128 would take you about ten 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 730128 cubic inches would be around 7.5 feet tall.

### Recreational maths with 730128

• 730128 backwards is 821037
• 730128 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 730128's digits is 21
• More coming soon!