# 198720

## 198,720 is an even composite number composed of four prime numbers multiplied together.

What does the number 198720 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 112 divisors.

198720 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twelve divisors.

## Prime factorization of 198720:

### 26 × 33 × 5 × 23

(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 23)

See below for interesting mathematical facts about the number 198720 from the Numbermatics database.

### Names of 198720

• Cardinal: 198720 can be written as One hundred ninety-eight thousand, seven hundred twenty.

### Scientific notation

• Scientific notation: 1.9872 × 105

### Factors of 198720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 33

### Divisors of 198720

• Number of divisors d(n): 112
• Complete list of divisors:
• Sum of all divisors σ(n): 731520
• Sum of proper divisors (its aliquot sum) s(n): 532800
• 198720 is an abundant number, because the sum of its proper divisors (532800) is greater than itself. Its abundance is 334080

### Bases of 198720

• Binary: 1100001000010000002
• Base-36: 49C0

### Squares and roots of 198720

• 198720 squared (1987202) is 39489638400
• 198720 cubed (1987203) is 7847380942848000
• The square root of 198720 is 445.7802149041
• The cube root of 198720 is 58.3553295733

### Scales and comparisons

How big is 198720?
• 198,720 seconds is equal to 2 days, 7 hours, 12 minutes.
• To count from 1 to 198,720 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 198720 cubic inches would be around 4.9 feet tall.

### Recreational maths with 198720

• 198720 backwards is 027891
• 198720 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 198720's digits is 27
• More coming soon!