# 1636

## 1,636 is an even composite number composed of two prime numbers multiplied together.

What does the number 1636 look like?

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

1636 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 1636:

### 22 × 409

(2 × 2 × 409)

See below for interesting mathematical facts about the number 1636 from the Numbermatics database.

### Names of 1636

• Cardinal: 1636 can be written as One thousand, six hundred thirty-six.

### Scientific notation

• Scientific notation: 1.636 × 103

### Factors of 1636

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 411

### Divisors of 1636

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 2870
• Sum of proper divisors (its aliquot sum) s(n): 1234
• 1636 is a deficient number, because the sum of its proper divisors (1234) is less than itself. Its deficiency is 402

### Bases of 1636

• Binary: 110011001002
• Base-36: 19G

### Squares and roots of 1636

• 1636 squared (16362) is 2676496
• 1636 cubed (16363) is 4378747456
• The square root of 1636 is 40.4474968323
• The cube root of 1636 is 11.7831416835

### Scales and comparisons

How big is 1636?
• 1,636 seconds is equal to 27 minutes, 16 seconds.
• To count from 1 to 1,636 would take you about twenty-seven 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 1636 cubic inches would be around 1 feet tall.

### Recreational maths with 1636

• 1636 backwards is 6361
• The number of decimal digits it has is: 4
• The sum of 1636's digits is 16
• More coming soon!