# 71280

## 71,280 is an even composite number composed of four prime numbers multiplied together.

What does the number 71280 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 100 divisors.

71280 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred divisors.

## Prime factorization of 71280:

### 24 × 34 × 5 × 11

(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 11)

See below for interesting mathematical facts about the number 71280 from the Numbermatics database.

### Names of 71280

• Cardinal: 71280 can be written as Seventy-one thousand, two hundred eighty.

### Scientific notation

• Scientific notation: 7.128 × 104

### Factors of 71280

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 21

### Divisors of 71280

• Number of divisors d(n): 100
• Complete list of divisors:
• Sum of all divisors σ(n): 270072
• Sum of proper divisors (its aliquot sum) s(n): 198792
• 71280 is an abundant number, because the sum of its proper divisors (198792) is greater than itself. Its abundance is 127512

### Bases of 71280

• Binary: 100010110011100002
• Base-36: 1J00

### Squares and roots of 71280

• 71280 squared (712802) is 5080838400
• 71280 cubed (712803) is 362162161152000
• The square root of 71280 is 266.9831455355
• The cube root of 71280 is 41.4625393801

### Scales and comparisons

How big is 71280?
• 71,280 seconds is equal to 19 hours, 48 minutes.
• To count from 1 to 71,280 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 71280 cubic inches would be around 3.5 feet tall.

### Recreational maths with 71280

• 71280 backwards is 08217
• 71280 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 71280's digits is 18
• More coming soon!