# 129808

## 129,808 is an even composite number composed of four prime numbers multiplied together.

What does the number 129808 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 40 divisors.

129808 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty divisors.

## Prime factorization of 129808:

### 24 × 7 × 19 × 61

(2 × 2 × 2 × 2 × 7 × 19 × 61)

See below for interesting mathematical facts about the number 129808 from the Numbermatics database.

### Names of 129808

• Cardinal: 129808 can be written as One hundred twenty-nine thousand, eight hundred eight.

### Scientific notation

• Scientific notation: 1.29808 × 105

### Factors of 129808

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 89

### Divisors of 129808

• Number of divisors d(n): 40
• Complete list of divisors:
• Sum of all divisors σ(n): 307520
• Sum of proper divisors (its aliquot sum) s(n): 177712
• 129808 is an abundant number, because the sum of its proper divisors (177712) is greater than itself. Its abundance is 47904

### Bases of 129808

• Binary: 111111011000100002
• Base-36: 2S5S

### Squares and roots of 129808

• 129808 squared (1298082) is 16850116864
• 129808 cubed (1298083) is 2187279969882112
• The square root of 129808 is 360.2887730697
• The cube root of 129808 is 50.6330185947

### Scales and comparisons

How big is 129808?
• 129,808 seconds is equal to 1 day, 12 hours, 3 minutes, 28 seconds.
• To count from 1 to 129,808 would take you about twelve 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 129808 cubic inches would be around 4.2 feet tall.

### Recreational maths with 129808

• 129808 backwards is 808921
• 129808 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 129808's digits is 28
• More coming soon!