# 71945

## 71,945 is an odd composite number composed of two prime numbers multiplied together.

What does the number 71945 look like?

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

71945 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 71945:

### 5 × 14389

See below for interesting mathematical facts about the number 71945 from the Numbermatics database.

### Names of 71945

• Cardinal: 71945 can be written as Seventy-one thousand, nine hundred forty-five.

### Scientific notation

• Scientific notation: 7.1945 × 104

### Factors of 71945

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 14394

### Divisors of 71945

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 86340
• Sum of proper divisors (its aliquot sum) s(n): 14395
• 71945 is a deficient number, because the sum of its proper divisors (14395) is less than itself. Its deficiency is 57550

### Bases of 71945

• Binary: 100011001000010012
• Base-36: 1JIH

### Squares and roots of 71945

• 71945 squared (719452) is 5176083025
• 71945 cubed (719453) is 372393293233625
• The square root of 71945 is 268.2256512715
• The cube root of 71945 is 41.5910807431

### Scales and comparisons

How big is 71945?
• 71,945 seconds is equal to 19 hours, 59 minutes, 5 seconds.
• To count from 1 to 71,945 would take you about nineteen 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 71945 cubic inches would be around 3.5 feet tall.

### Recreational maths with 71945

• 71945 backwards is 54917
• The number of decimal digits it has is: 5
• The sum of 71945's digits is 26
• More coming soon!