# 556

## 556 is an even composite number composed of two prime numbers multiplied together.

What does the number 556 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

556 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

## Prime factorization of 556:

### 22 × 139

(2 × 2 × 139)

See below for interesting mathematical facts about the number 556 from the Numbermatics database.

### Names of 556

• Cardinal: 556 can be written as Five hundred fifty-six.

### Scientific notation

• Scientific notation: 5.56 × 102

### Factors of 556

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 141

### Divisors of 556

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 980
• Sum of proper divisors (its aliquot sum) s(n): 424
• 556 is a deficient number, because the sum of its proper divisors (424) is less than itself. Its deficiency is 132

### Bases of 556

• Binary: 10001011002
• Base-36: FG

### Squares and roots of 556

• 556 squared (5562) is 309136
• 556 cubed (5563) is 171879616
• The square root of 556 is 23.5796522451
• The cube root of 556 is 8.2228985187

### Scales and comparisons

How big is 556?
• 556 seconds is equal to 9 minutes, 16 seconds.
• To count from 1 to 556 would take you about four 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 556 cubic inches would be around 0.7 feet tall.

### Recreational maths with 556

• 556 backwards is 655
• The number of decimal digits it has is: 3
• The sum of 556's digits is 16
• More coming soon!