# 726

## 726 is an even composite number composed of three prime numbers multiplied together.

What does the number 726 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

726 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

## Prime factorization of 726:

### 2 × 3 × 112

(2 × 3 × 11 × 11)

See below for interesting mathematical facts about the number 726 from the Numbermatics database.

### Names of 726

• Cardinal: 726 can be written as Seven hundred twenty-six.

### Scientific notation

• Scientific notation: 7.26 × 102

### Factors of 726

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 16

### Divisors of 726

• Number of divisors d(n): 12
• Complete list of divisors:
• Sum of all divisors σ(n): 1596
• Sum of proper divisors (its aliquot sum) s(n): 870
• 726 is an abundant number, because the sum of its proper divisors (870) is greater than itself. Its abundance is 144

### Bases of 726

• Binary: 10110101102
• Base-36: K6

### Squares and roots of 726

• 726 squared (7262) is 527076
• 726 cubed (7263) is 382657176
• The square root of 726 is 26.9443871707
• The cube root of 726 is 8.9876373471

### Scales and comparisons

How big is 726?
• 726 seconds is equal to 12 minutes, 6 seconds.
• To count from 1 to 726 would take you about six minutes.

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 726 cubic inches would be around 0.7 feet tall.

### Recreational maths with 726

• 726 backwards is 627
• The number of decimal digits it has is: 3
• The sum of 726's digits is 15
• More coming soon!