# 6638720

## 6,638,720 is an even composite number composed of five prime numbers multiplied together.

What does the number 6638720 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 128 divisors.

6638720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.

## Prime factorization of 6638720:

### 27 × 5 × 11 × 23 × 41

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 11 × 23 × 41)

See below for interesting mathematical facts about the number 6638720 from the Numbermatics database.

### Names of 6638720

• Cardinal: 6638720 can be written as Six million, six hundred thirty-eight thousand, seven hundred twenty.

### Scientific notation

• Scientific notation: 6.63872 × 106

### Factors of 6638720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 82

### Divisors of 6638720

• Number of divisors d(n): 128
• Complete list of divisors:
• Sum of all divisors σ(n): 18506880
• Sum of proper divisors (its aliquot sum) s(n): 11868160
• 6638720 is an abundant number, because the sum of its proper divisors (11868160) is greater than itself. Its abundance is 5229440

### Bases of 6638720

• Binary: 110010101001100100000002
• Base-36: 3YAGW

### Squares and roots of 6638720

• 6638720 squared (66387202) is 44072603238400
• 6638720 cubed (66387203) is 292585672570830848000
• The square root of 6638720 is 2576.5713652061
• The cube root of 6638720 is 187.9438492335

### Scales and comparisons

How big is 6638720?
• 6,638,720 seconds is equal to 10 weeks, 6 days, 20 hours, 5 minutes, 20 seconds.
• To count from 1 to 6,638,720 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 6638720 cubic inches would be around 15.7 feet tall.

### Recreational maths with 6638720

• 6638720 backwards is 0278366
• 6638720 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 6638720's digits is 32
• More coming soon!