# 549

## 549 is an odd composite number composed of two prime numbers multiplied together.

What does the number 549 look like?

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

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

## Prime factorization of 549:

### 32 × 61

(3 × 3 × 61)

See below for interesting mathematical facts about the number 549 from the Numbermatics database.

### Names of 549

• Cardinal: 549 can be written as Five hundred forty-nine.

### Scientific notation

• Scientific notation: 5.49 × 102

### Factors of 549

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 64

### Divisors of 549

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 806
• Sum of proper divisors (its aliquot sum) s(n): 257
• 549 is a deficient number, because the sum of its proper divisors (257) is less than itself. Its deficiency is 292

### Bases of 549

• Binary: 10001001012
• Base-36: F9

### Squares and roots of 549

• 549 squared (5492) is 301401
• 549 cubed (5493) is 165469149
• The square root of 549 is 23.4307490277
• The cube root of 549 is 8.1882441101

### Scales and comparisons

How big is 549?
• 549 seconds is equal to 9 minutes, 9 seconds.
• To count from 1 to 549 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 549 cubic inches would be around 0.7 feet tall.

### Recreational maths with 549

• 549 backwards is 945
• The number of decimal digits it has is: 3
• The sum of 549's digits is 18
• More coming soon!