# 1806

## 1,806 is an even composite number composed of four prime numbers multiplied together.

What does the number 1806 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

1806 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

## Prime factorization of 1806:

### 2 × 3 × 7 × 43

See below for interesting mathematical facts about the number 1806 from the Numbermatics database.

### Names of 1806

• Cardinal: 1806 can be written as One thousand, eight hundred six.

### Scientific notation

• Scientific notation: 1.806 × 103

### Factors of 1806

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 55

### Divisors of 1806

• Number of divisors d(n): 16
• Complete list of divisors:
• Sum of all divisors σ(n): 4224
• Sum of proper divisors (its aliquot sum) s(n): 2418
• 1806 is an abundant number, because the sum of its proper divisors (2418) is greater than itself. Its abundance is 612

### Bases of 1806

• Binary: 111000011102
• Base-36: 1E6

### Squares and roots of 1806

• 1806 squared (18062) is 3261636
• 1806 cubed (18063) is 5890514616
• The square root of 1806 is 42.4970587217
• The cube root of 1806 is 12.1779050055

### Scales and comparisons

How big is 1806?
• 1,806 seconds is equal to 30 minutes, 6 seconds.
• To count from 1 to 1,806 would take you about thirty 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 1806 cubic inches would be around 1 feet tall.

### Recreational maths with 1806

• 1806 backwards is 6081
• The number of decimal digits it has is: 4
• The sum of 1806's digits is 15
• More coming soon!