# 1820811

## 1,820,811 is an odd composite number composed of three prime numbers multiplied together.

What does the number 1820811 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

1820811 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

## Prime factorization of 1820811:

### 3 × 337 × 1801

See below for interesting mathematical facts about the number 1820811 from the Numbermatics database.

### Names of 1820811

• Cardinal: 1820811 can be written as One million, eight hundred twenty thousand, eight hundred eleven.

### Scientific notation

• Scientific notation: 1.820811 × 106

### Factors of 1820811

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 2141

### Divisors of 1820811

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 2436304
• Sum of proper divisors (its aliquot sum) s(n): 615493
• 1820811 is a deficient number, because the sum of its proper divisors (615493) is less than itself. Its deficiency is 1205318

### Bases of 1820811

• Binary: 1101111001000100010112
• Base-36: 130Y3

### Squares and roots of 1820811

• 1820811 squared (18208112) is 3315352697721
• 1820811 cubed (18208113) is 6036630660890071731
• The square root of 1820811 is 1349.3742994441
• The cube root of 1820811 is 122.1110473281

### Scales and comparisons

How big is 1820811?
• 1,820,811 seconds is equal to 3 weeks, 1 hour, 46 minutes, 51 seconds.
• To count from 1 to 1,820,811 would take you about four weeks!

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 1820811 cubic inches would be around 10.2 feet tall.

### Recreational maths with 1820811

• 1820811 backwards is 1180281
• The number of decimal digits it has is: 7
• The sum of 1820811's digits is 21
• More coming soon!