# 40805

## 40,805 is an odd composite number composed of two prime numbers multiplied together.

What does the number 40805 look like?

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

40805 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 40805:

### 5 × 8161

See below for interesting mathematical facts about the number 40805 from the Numbermatics database.

### Names of 40805

• Cardinal: 40805 can be written as Forty thousand, eight hundred five.

### Scientific notation

• Scientific notation: 4.0805 × 104

### Factors of 40805

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 8166

### Divisors of 40805

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 48972
• Sum of proper divisors (its aliquot sum) s(n): 8167
• 40805 is a deficient number, because the sum of its proper divisors (8167) is less than itself. Its deficiency is 32638

### Bases of 40805

• Binary: 10011111011001012
• Base-36: VHH

### Squares and roots of 40805

• 40805 squared (408052) is 1665048025
• 40805 cubed (408053) is 67942284660125
• The square root of 40805 is 202.0024752325
• The cube root of 40805 is 34.4274186485

### Scales and comparisons

How big is 40805?
• 40,805 seconds is equal to 11 hours, 20 minutes, 5 seconds.
• To count from 1 to 40,805 would take you about eleven hours.

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 40805 cubic inches would be around 2.9 feet tall.

### Recreational maths with 40805

• 40805 backwards is 50804
• The number of decimal digits it has is: 5
• The sum of 40805's digits is 17
• More coming soon!