# 395

## 395 is an odd composite number composed of two prime numbers multiplied together.

What does the number 395 look like?

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

395 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 395:

### 5 × 79

See below for interesting mathematical facts about the number 395 from the Numbermatics database.

### Names of 395

• Cardinal: 395 can be written as Three hundred ninety-five.

### Scientific notation

• Scientific notation: 3.95 × 102

### Factors of 395

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 84

### Divisors of 395

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 480
• Sum of proper divisors (its aliquot sum) s(n): 85
• 395 is a deficient number, because the sum of its proper divisors (85) is less than itself. Its deficiency is 310

### Bases of 395

• Binary: 1100010112
• Base-36: AZ

### Squares and roots of 395

• 395 squared (3952) is 156025
• 395 cubed (3953) is 61629875
• The square root of 395 is 19.8746069143
• The cube root of 395 is 7.3372339211

### Scales and comparisons

How big is 395?
• 395 seconds is equal to 6 minutes, 35 seconds.
• To count from 1 to 395 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 395 cubic inches would be around 0.6 feet tall.

### Recreational maths with 395

• 395 backwards is 593
• The number of decimal digits it has is: 3
• The sum of 395's digits is 17
• More coming soon!

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The information we have on file for 395 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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