# 4145

## 4,145 is an odd composite number composed of two prime numbers multiplied together.

What does the number 4145 look like?

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

4145 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 4145:

### 5 × 829

See below for interesting mathematical facts about the number 4145 from the Numbermatics database.

### Names of 4145

• Cardinal: 4145 can be written as Four thousand, one hundred forty-five.

### Scientific notation

• Scientific notation: 4.145 × 103

### Factors of 4145

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 834

### Divisors of 4145

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 4980
• Sum of proper divisors (its aliquot sum) s(n): 835
• 4145 is a deficient number, because the sum of its proper divisors (835) is less than itself. Its deficiency is 3310

### Bases of 4145

• Binary: 10000001100012
• Base-36: 375

### Squares and roots of 4145

• 4145 squared (41452) is 17181025
• 4145 cubed (41453) is 71215348625
• The square root of 4145 is 64.3816744113
• The cube root of 4145 is 16.0635493417

### Scales and comparisons

How big is 4145?
• 4,145 seconds is equal to 1 hour, 9 minutes, 5 seconds.
• To count from 1 to 4,145 would take you about nine 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 4145 cubic inches would be around 1.3 feet tall.

### Recreational maths with 4145

• 4145 backwards is 5414
• The number of decimal digits it has is: 4
• The sum of 4145's digits is 14
• More coming soon!