# 1819

## 1,819 is an odd composite number composed of two prime numbers multiplied together.

What does the number 1819 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

1819 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

## Prime factorization of 1819:

### 17 × 107

See below for interesting mathematical facts about the number 1819 from the Numbermatics database.

### Names of 1819

• Cardinal: 1819 can be written as One thousand, eight hundred nineteen.

### Scientific notation

• Scientific notation: 1.819 × 103

### Factors of 1819

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 124

### Divisors of 1819

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 1944
• Sum of proper divisors (its aliquot sum) s(n): 125
• 1819 is a deficient number, because the sum of its proper divisors (125) is less than itself. Its deficiency is 1694

### Bases of 1819

• Binary: 111000110112
• Base-36: 1EJ

### Squares and roots of 1819

• 1819 squared (18192) is 3308761
• 1819 cubed (18193) is 6018636259
• The square root of 1819 is 42.6497362243
• The cube root of 1819 is 12.2070549539

### Scales and comparisons

How big is 1819?
• 1,819 seconds is equal to 30 minutes, 19 seconds.
• To count from 1 to 1,819 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 1819 cubic inches would be around 1 feet tall.

### Recreational maths with 1819

• 1819 backwards is 9181
• The number of decimal digits it has is: 4
• The sum of 1819's digits is 19
• More coming soon!