# 28179380

## 28,179,380 is an even composite number composed of three prime numbers multiplied together.

What does the number 28179380 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 18 divisors.

28179380 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eighteen divisors.

## Prime factorization of 28179380:

### 22 × 5 × 11872

(2 × 2 × 5 × 1187 × 1187)

See below for interesting mathematical facts about the number 28179380 from the Numbermatics database.

### Names of 28179380

• Cardinal: 28179380 can be written as Twenty-eight million, one hundred seventy-nine thousand, three hundred eighty.

### Scientific notation

• Scientific notation: 2.817938 × 107

### Factors of 28179380

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1194

### Divisors of 28179380

• Number of divisors d(n): 18
• Complete list of divisors:
• Sum of all divisors σ(n): 59226594
• Sum of proper divisors (its aliquot sum) s(n): 31047214
• 28179380 is an abundant number, because the sum of its proper divisors (31047214) is greater than itself. Its abundance is 2867834

### Bases of 28179380

• Binary: 11010110111111011101101002
• Base-36: GRZCK

### Squares and roots of 28179380

• 28179380 squared (281793802) is 794077457184400
• 28179380 cubed (281793803) is 22376610415432937672000
• The square root of 28179380 is 5308.4253785845
• The cube root of 28179380 is 304.3059736769

### Scales and comparisons

How big is 28179380?
• 28,179,380 seconds is equal to 46 weeks, 4 days, 3 hours, 36 minutes, 20 seconds.
• To count from 1 to 28,179,380 would take you about seventeen weeks!

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 28179380 cubic inches would be around 25.4 feet tall.

### Recreational maths with 28179380

• 28179380 backwards is 08397182
• The number of decimal digits it has is: 8
• The sum of 28179380's digits is 38
• More coming soon!