# 199728

## 199,728 is an even composite number composed of four prime numbers multiplied together.

What does the number 199728 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 60 divisors.

199728 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.

## Prime factorization of 199728:

### 24 × 32 × 19 × 73

(2 × 2 × 2 × 2 × 3 × 3 × 19 × 73)

See below for interesting mathematical facts about the number 199728 from the Numbermatics database.

### Names of 199728

• Cardinal: 199728 can be written as One hundred ninety-nine thousand, seven hundred twenty-eight.

### Scientific notation

• Scientific notation: 1.99728 × 105

### Factors of 199728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 97

### Divisors of 199728

• Number of divisors d(n): 60
• Complete list of divisors:
• Sum of all divisors σ(n): 596440
• Sum of proper divisors (its aliquot sum) s(n): 396712
• 199728 is an abundant number, because the sum of its proper divisors (396712) is greater than itself. Its abundance is 196984

### Bases of 199728

• Binary: 1100001100001100002
• Base-36: 4A40

### Squares and roots of 199728

• 199728 squared (1997282) is 39891273984
• 199728 cubed (1997283) is 7967404370276352
• The square root of 199728 is 446.9093867889
• The cube root of 199728 is 58.4538316425

### Scales and comparisons

How big is 199728?
• 199,728 seconds is equal to 2 days, 7 hours, 28 minutes, 48 seconds.
• To count from 1 to 199,728 would take you about two days.

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 199728 cubic inches would be around 4.9 feet tall.

### Recreational maths with 199728

• 199728 backwards is 827991
• 199728 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 199728's digits is 36
• More coming soon!