# 3811

## 3,811 is an odd composite number composed of two prime numbers multiplied together.

What does the number 3811 look like?

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

3811 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 3811:

### 37 × 103

See below for interesting mathematical facts about the number 3811 from the Numbermatics database.

### Names of 3811

• Cardinal: 3811 can be written as Three thousand, eight hundred eleven.

### Scientific notation

• Scientific notation: 3.811 × 103

### Factors of 3811

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 140

### Divisors of 3811

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 3952
• Sum of proper divisors (its aliquot sum) s(n): 141
• 3811 is a deficient number, because the sum of its proper divisors (141) is less than itself. Its deficiency is 3670

### Bases of 3811

• Binary: 1110111000112
• Base-36: 2XV

### Squares and roots of 3811

• 3811 squared (38112) is 14523721
• 3811 cubed (38113) is 55349900731
• The square root of 3811 is 61.7332973363
• The cube root of 3811 is 15.6199503683

### Scales and comparisons

How big is 3811?
• 3,811 seconds is equal to 1 hour, 3 minutes, 31 seconds.
• To count from 1 to 3,811 would take you about three 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 3811 cubic inches would be around 1.3 feet tall.

### Recreational maths with 3811

• 3811 backwards is 1183
• The number of decimal digits it has is: 4
• The sum of 3811's digits is 13
• More coming soon!