# 72381

## 72,381 is an odd composite number composed of three prime numbers multiplied together.

What does the number 72381 look like?

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

72381 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 72381:

### 3 × 23 × 1049

See below for interesting mathematical facts about the number 72381 from the Numbermatics database.

### Names of 72381

• Cardinal: 72381 can be written as Seventy-two thousand, three hundred eighty-one.

### Scientific notation

• Scientific notation: 7.2381 × 104

### Factors of 72381

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1075

### Divisors of 72381

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 100800
• Sum of proper divisors (its aliquot sum) s(n): 28419
• 72381 is a deficient number, because the sum of its proper divisors (28419) is less than itself. Its deficiency is 43962

### Bases of 72381

• Binary: 100011010101111012
• Base-36: 1JUL

### Squares and roots of 72381

• 72381 squared (723812) is 5239009161
• 72381 cubed (723813) is 379204722082341
• The square root of 72381 is 269.0371721529
• The cube root of 72381 is 41.6749281397

### Scales and comparisons

How big is 72381?
• 72,381 seconds is equal to 20 hours, 6 minutes, 21 seconds.
• To count from 1 to 72,381 would take you about twenty 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 72381 cubic inches would be around 3.5 feet tall.

### Recreational maths with 72381

• 72381 backwards is 18327
• The number of decimal digits it has is: 5
• The sum of 72381's digits is 21
• More coming soon!