130728

130,728 is an even composite number composed of four prime numbers multiplied together.

What does the number 130728 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

130728 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 130728:

2³ × 3 × 13 × 419

(2 × 2 × 2 × 3 × 13 × 419)

See below for interesting mathematical facts about the number 130728 from the Numbermatics database.

Names of 130728

Cardinal: 130728 can be written as One hundred thirty thousand, seven hundred twenty-eight.

Scientific notation

Scientific notation: 1.30728 × 10⁵

Factors of 130728

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 437

Divisors of 130728

Number of divisors d(n): 32
Complete list of divisors:
1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 419 838 1257 1676 2514 3352 5028 5447 10056 10894 16341 21788 32682 43576 65364 130728
Sum of all divisors σ(n): 352800
Sum of proper divisors (its aliquot sum) s(n): 222072
130728 is an abundant number, because the sum of its proper divisors (222072) is greater than itself. Its abundance is 91344

Bases of 130728

Binary: 11111111010101000₂
Hexadecimal: 0x1FEA8
Base-36: 2SVC

Squares and roots of 130728

130728 squared (130728²) is 17089809984
130728 cubed (130728³) is 2234116679588352
The square root of 130728 is 361.5632724711
The cube root of 130728 is 50.7523557677

Scales and comparisons

How big is 130728?

130,728 seconds is equal to 1 day, 12 hours, 18 minutes, 48 seconds.
To count from 1 to 130,728 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 130728 cubic inches would be around 4.2 feet tall.

Recreational maths with 130728

130728 backwards is 827031
The number of decimal digits it has is: 6
The sum of 130728's digits is 21
More coming soon!

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The information we have on file for 130728 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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