# 6666440

## 6,666,440 is an even composite number composed of five prime numbers multiplied together.

What does the number 6666440 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 64 divisors.

6666440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.

## Prime factorization of 6666440:

### 23 × 5 × 11 × 109 × 139

(2 × 2 × 2 × 5 × 11 × 109 × 139)

See below for interesting mathematical facts about the number 6666440 from the Numbermatics database.

### Names of 6666440

• Cardinal: 6666440 can be written as Six million, six hundred sixty-six thousand, four hundred forty.

### Scientific notation

• Scientific notation: 6.66644 × 106

### Factors of 6666440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 266

### Divisors of 6666440

• Number of divisors d(n): 64
• Complete list of divisors:
• Sum of all divisors σ(n): 16632000
• Sum of proper divisors (its aliquot sum) s(n): 9965560
• 6666440 is an abundant number, because the sum of its proper divisors (9965560) is greater than itself. Its abundance is 3299120

### Bases of 6666440

• Binary: 110010110111000110010002
• Base-36: 3YVUW

### Squares and roots of 6666440

• 6666440 squared (66664402) is 44441422273600
• 6666440 cubed (66664403) is 296266075101617984000
• The square root of 6666440 is 2581.9450032873
• The cube root of 6666440 is 188.2050727371

### Scales and comparisons

How big is 6666440?
• 6,666,440 seconds is equal to 11 weeks, 3 hours, 47 minutes, 20 seconds.
• To count from 1 to 6,666,440 would take you about sixteen 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 6666440 cubic inches would be around 15.7 feet tall.

### Recreational maths with 6666440

• 6666440 backwards is 0446666
• The number of decimal digits it has is: 7
• The sum of 6666440's digits is 32
• More coming soon!