# 28736

## 28,736 is an even composite number composed of two prime numbers multiplied together.

What does the number 28736 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 14 divisors.

28736 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of fourteen divisors.

## Prime factorization of 28736:

### 26 × 449

(2 × 2 × 2 × 2 × 2 × 2 × 449)

See below for interesting mathematical facts about the number 28736 from the Numbermatics database.

### Names of 28736

• Cardinal: 28736 can be written as Twenty-eight thousand, seven hundred thirty-six.

### Scientific notation

• Scientific notation: 2.8736 × 104

### Factors of 28736

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 451

### Divisors of 28736

• Number of divisors d(n): 14
• Complete list of divisors:
• Sum of all divisors σ(n): 57150
• Sum of proper divisors (its aliquot sum) s(n): 28414
• 28736 is a deficient number, because the sum of its proper divisors (28414) is less than itself. Its deficiency is 322

### Bases of 28736

• Binary: 1110000010000002
• Base-36: M68

### Squares and roots of 28736

• 28736 squared (287362) is 825757696
• 28736 cubed (287363) is 23728973152256
• The square root of 28736 is 169.5169608035
• The cube root of 28736 is 30.6296549915

### Scales and comparisons

How big is 28736?
• 28,736 seconds is equal to 7 hours, 58 minutes, 56 seconds.
• To count from 1 to 28,736 would take you about seven 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 28736 cubic inches would be around 2.6 feet tall.

### Recreational maths with 28736

• 28736 backwards is 63782
• The number of decimal digits it has is: 5
• The sum of 28736's digits is 26
• More coming soon!