# 6728731

## 6,728,731 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 6728731 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

6728731 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 6728731:

### 6728731

See below for interesting mathematical facts about the number 6728731 from the Numbermatics database.

### Names of 6728731

• Cardinal: 6728731 can be written as Six million, seven hundred twenty-eight thousand, seven hundred thirty-one.

### Scientific notation

• Scientific notation: 6.728731 × 106

### Factors of 6728731

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 6728731

### Divisors of 6728731

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 6728732
• Sum of proper divisors (its aliquot sum) s(n): 1
• 6728731 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 6728730

### Bases of 6728731

• Binary: 110011010101100000110112
• Base-36: 407X7

### Squares and roots of 6728731

• 6728731 squared (67287312) is 45275820870361
• 6728731 cubed (67287313) is 304648819440845041891
• The square root of 6728731 is 2593.9797609079
• The cube root of 6728731 is 188.7894504035

### Scales and comparisons

How big is 6728731?
• 6,728,731 seconds is equal to 11 weeks, 21 hours, 5 minutes, 31 seconds.
• To count from 1 to 6,728,731 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 6728731 cubic inches would be around 15.7 feet tall.

### Recreational maths with 6728731

• 6728731 backwards is 1378276
• The number of decimal digits it has is: 7
• The sum of 6728731's digits is 34
• More coming soon!