# 72839

## 72,839 is an odd composite number composed of two prime numbers multiplied together.

What does the number 72839 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

72839 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

## Prime factorization of 72839:

### 132 × 431

(13 × 13 × 431)

See below for interesting mathematical facts about the number 72839 from the Numbermatics database.

### Names of 72839

• Cardinal: 72839 can be written as Seventy-two thousand, eight hundred thirty-nine.

### Scientific notation

• Scientific notation: 7.2839 × 104

### Factors of 72839

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 444

### Divisors of 72839

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 79056
• Sum of proper divisors (its aliquot sum) s(n): 6217
• 72839 is a deficient number, because the sum of its proper divisors (6217) is less than itself. Its deficiency is 66622

### Bases of 72839

• Binary: 100011100100001112
• Base-36: 1K7B

### Squares and roots of 72839

• 72839 squared (728392) is 5305519921
• 72839 cubed (728393) is 386448765525719
• The square root of 72839 is 269.8870133965
• The cube root of 72839 is 41.7626445261

### Scales and comparisons

How big is 72839?
• 72,839 seconds is equal to 20 hours, 13 minutes, 59 seconds.
• To count from 1 to 72,839 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 72839 cubic inches would be around 3.5 feet tall.

### Recreational maths with 72839

• 72839 backwards is 93827
• The number of decimal digits it has is: 5
• The sum of 72839's digits is 29
• More coming soon!