# 3965

## 3,965 is an odd composite number composed of three prime numbers multiplied together.

What does the number 3965 look like?

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

3965 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 3965:

### 5 × 13 × 61

See below for interesting mathematical facts about the number 3965 from the Numbermatics database.

### Names of 3965

• Cardinal: 3965 can be written as Three thousand, nine hundred sixty-five.

### Scientific notation

• Scientific notation: 3.965 × 103

### Factors of 3965

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 79

### Divisors of 3965

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 5208
• Sum of proper divisors (its aliquot sum) s(n): 1243
• 3965 is a deficient number, because the sum of its proper divisors (1243) is less than itself. Its deficiency is 2722

### Bases of 3965

• Binary: 1111011111012
• Base-36: 325

### Squares and roots of 3965

• 3965 squared (39652) is 15721225
• 3965 cubed (39653) is 62334657125
• The square root of 3965 is 62.9682459657
• The cube root of 3965 is 15.8275756227

### Scales and comparisons

How big is 3965?
• 3,965 seconds is equal to 1 hour, 6 minutes, 5 seconds.
• To count from 1 to 3,965 would take you about six 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 3965 cubic inches would be around 1.3 feet tall.

### Recreational maths with 3965

• 3965 backwards is 5693
• The number of decimal digits it has is: 4
• The sum of 3965's digits is 23
• More coming soon!

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"Number 3965 - Facts about the integer". Numbermatics.com. 2022. Web. 20 August 2022.

APA style:
Numbermatics. (2022). Number 3965 - Facts about the integer. Retrieved 20 August 2022, from https://numbermatics.com/n/3965/

Chicago style:
Numbermatics. 2022. "Number 3965 - Facts about the integer". https://numbermatics.com/n/3965/

The information we have on file for 3965 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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