# 1668240

## 1,668,240 is an even composite number composed of five prime numbers multiplied together.

What does the number 1668240 look like?

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

1668240 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 1668240:

### 24 × 32 × 5 × 7 × 331

(2 × 2 × 2 × 2 × 3 × 3 × 5 × 7 × 331)

See below for interesting mathematical facts about the number 1668240 from the Numbermatics database.

### Names of 1668240

• Cardinal: 1668240 can be written as One million, six hundred sixty-eight thousand, two hundred forty.

### Scientific notation

• Scientific notation: 1.66824 × 106

### Factors of 1668240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 348

### Divisors of 1668240

• Number of divisors d(n): 120
• Complete list of divisors:
• Sum of all divisors σ(n): 6422208
• Sum of proper divisors (its aliquot sum) s(n): 4753968
• 1668240 is an abundant number, because the sum of its proper divisors (4753968) is greater than itself. Its abundance is 3085728

### Bases of 1668240

• Binary: 1100101110100100100002
• Base-36: ZR80

### Squares and roots of 1668240

• 1668240 squared (16682402) is 2783024697600
• 1668240 cubed (16682403) is 4642753121524224000
• The square root of 1668240 is 1291.6036543769
• The cube root of 1668240 is 118.6004062749

### Scales and comparisons

How big is 1668240?
• 1,668,240 seconds is equal to 2 weeks, 5 days, 7 hours, 24 minutes.
• To count from 1 to 1,668,240 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 1668240 cubic inches would be around 9.9 feet tall.

### Recreational maths with 1668240

• 1668240 backwards is 0428661
• The number of decimal digits it has is: 7
• The sum of 1668240's digits is 27
• More coming soon!