# 1213920

## 1,213,920 is an even composite number composed of four prime numbers multiplied together.

What does the number 1213920 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 96 divisors.

1213920 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of ninety-six divisors.

## Prime factorization of 1213920:

### 25 × 33 × 5 × 281

(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 281)

See below for interesting mathematical facts about the number 1213920 from the Numbermatics database.

### Names of 1213920

• Cardinal: 1213920 can be written as One million, two hundred thirteen thousand, nine hundred twenty.

### Scientific notation

• Scientific notation: 1.21392 × 106

### Factors of 1213920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 291

### Divisors of 1213920

• Number of divisors d(n): 96
• Complete list of divisors:
• Sum of all divisors σ(n): 4263840
• Sum of proper divisors (its aliquot sum) s(n): 3049920
• 1213920 is an abundant number, because the sum of its proper divisors (3049920) is greater than itself. Its abundance is 1836000

### Bases of 1213920

• Binary: 1001010000101111000002
• Base-36: Q0O0

### Squares and roots of 1213920

• 1213920 squared (12139202) is 1473601766400
• 1213920 cubed (12139203) is 1788834656268288000
• The square root of 1213920 is 1101.7803773893
• The cube root of 1213920 is 106.6751729325

### Scales and comparisons

How big is 1213920?
• 1,213,920 seconds is equal to 2 weeks, 1 hour, 12 minutes.
• To count from 1 to 1,213,920 would take you about three 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 1213920 cubic inches would be around 8.9 feet tall.

### Recreational maths with 1213920

• 1213920 backwards is 0293121
• 1213920 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 1213920's digits is 18
• More coming soon!