# 490

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

What does the number 490 look like?

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

490 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 490:

### 2 × 5 × 72

(2 × 5 × 7 × 7)

See below for interesting mathematical facts about the number 490 from the Numbermatics database.

### Names of 490

• Cardinal: 490 can be written as Four hundred ninety.

### Scientific notation

• Scientific notation: 4.9 × 102

### Factors of 490

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 14

### Divisors of 490

• Number of divisors d(n): 12
• Complete list of divisors:
• Sum of all divisors σ(n): 1026
• Sum of proper divisors (its aliquot sum) s(n): 536
• 490 is an abundant number, because the sum of its proper divisors (536) is greater than itself. Its abundance is 46

### Bases of 490

• Binary: 1111010102
• Base-36: DM

### Squares and roots of 490

• 490 squared (4902) is 240100
• 490 cubed (4903) is 117649000
• The square root of 490 is 22.1359436209
• The cube root of 490 is 7.8837351633

### Scales and comparisons

How big is 490?
• 490 seconds is equal to 8 minutes, 10 seconds.
• To count from 1 to 490 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 490 cubic inches would be around 0.7 feet tall.

### Recreational maths with 490

• 490 backwards is 094
• The number of decimal digits it has is: 3
• The sum of 490's digits is 13
• More coming soon!