# 1981200

## 1,981,200 is an even composite number composed of five prime numbers multiplied together.

What does the number 1981200 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 120 divisors.

1981200 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.

## Prime factorization of 1981200:

### 24 × 3 × 52 × 13 × 127

(2 × 2 × 2 × 2 × 3 × 5 × 5 × 13 × 127)

See below for interesting mathematical facts about the number 1981200 from the Numbermatics database.

### Names of 1981200

• Cardinal: 1981200 can be written as One million, nine hundred eighty-one thousand, two hundred.

### Scientific notation

• Scientific notation: 1.9812 × 106

### Factors of 1981200

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 150

### Divisors of 1981200

• Number of divisors d(n): 120
• Complete list of divisors:
• Sum of all divisors σ(n): 6888448
• Sum of proper divisors (its aliquot sum) s(n): 4907248
• 1981200 is an abundant number, because the sum of its proper divisors (4907248) is greater than itself. Its abundance is 2926048

### Bases of 1981200

• Binary: 1111000111011000100002
• Base-36: 16GPC

### Squares and roots of 1981200

• 1981200 squared (19812002) is 3925153440000
• 1981200 cubed (19812003) is 7776513995328000000
• The square root of 1981200 is 1407.5510647931
• The cube root of 1981200 is 125.5960862643

### Scales and comparisons

How big is 1981200?
• 1,981,200 seconds is equal to 3 weeks, 1 day, 22 hours, 20 minutes.
• To count from 1 to 1,981,200 would take you about four weeks!

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 1981200 cubic inches would be around 10.5 feet tall.

### Recreational maths with 1981200

• 1981200 backwards is 0021891
• The number of decimal digits it has is: 7
• The sum of 1981200's digits is 21
• More coming soon!