# 28713013728

## 28,713,013,728 is an even composite number composed of five prime numbers multiplied together.

What does the number 28713013728 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 288 divisors.

28713013728 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.

## Prime factorization of 28713013728:

### 25 × 3 × 72 × 41 × 533

(2 × 2 × 2 × 2 × 2 × 3 × 7 × 7 × 41 × 53 × 53 × 53)

See below for interesting mathematical facts about the number 28713013728 from the Numbermatics database.

### Names of 28713013728

• Cardinal: 28713013728 can be written as Twenty-eight billion, seven hundred thirteen million, thirteen thousand, seven hundred twenty-eight.

### Scientific notation

• Scientific notation: 2.8713013728 × 1010

### Factors of 28713013728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 106

### Divisors of 28713013728

• Number of divisors d(n): 288
• Complete list of divisors:
• Sum of all divisors σ(n): 91542921120
• Sum of proper divisors (its aliquot sum) s(n): 62829907392
• 28713013728 is an abundant number, because the sum of its proper divisors (62829907392) is greater than itself. Its abundance is 34116893664

### Bases of 28713013728

• Binary: 110101011110110110111010001111000002
• Base-36: D6UZJ6O

### Squares and roots of 28713013728

• 28713013728 squared (287130137282) is 824437157344316457984
• 28713013728 cubed (287130137283) is 23672075416700654480870927204352
• The square root of 28713013728 is 169449.1479116965
• The cube root of 28713013728 is 3062.1485803023

### Scales and comparisons

How big is 28713013728?
• 28,713,013,728 seconds is equal to 912 years, 51 weeks, 1 day, 13 hours, 8 minutes, 48 seconds.
• To count from 1 to 28,713,013,728 would take you about one thousand, eight hundred twenty-five years!

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 28713013728 cubic inches would be around 255.2 feet tall.

### Recreational maths with 28713013728

• 28713013728 backwards is 82731031782
• 28713013728 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28713013728's digits is 42
• More coming soon!