28163728

28,163,728 is an even composite number composed of two prime numbers multiplied together.

What does the number 28163728 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 10 divisors.

28163728 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of ten divisors.

Prime factorization of 28163728:

2⁴ × 1760233

(2 × 2 × 2 × 2 × 1760233)

See below for interesting mathematical facts about the number 28163728 from the Numbermatics database.

Names of 28163728

Cardinal: 28163728 can be written as Twenty-eight million, one hundred sixty-three thousand, seven hundred twenty-eight.

Scientific notation

Scientific notation: 2.8163728 × 10⁷

Factors of 28163728

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 5
Sum of prime factors: 1760235

Divisors of 28163728

Number of divisors d(n): 10
Complete list of divisors:
1 2 4 8 16 1760233 3520466 7040932 14081864 28163728
Sum of all divisors σ(n): 54567254
Sum of proper divisors (its aliquot sum) s(n): 26403526
28163728 is a deficient number, because the sum of its proper divisors (26403526) is less than itself. Its deficiency is 1760202

Bases of 28163728

Binary: 1101011011011111010010000₂
Hexadecimal: 0x1ADBE90
Base-36: GRN9S

Squares and roots of 28163728

28163728 squared (28163728²) is 793195574857984
28163728 cubed (28163728³) is 22339344421103900004352
The square root of 28163728 is 5306.9509136603
The cube root of 28163728 is 304.2496218431

Scales and comparisons

How big is 28163728?

28,163,728 seconds is equal to 46 weeks, 3 days, 23 hours, 15 minutes, 28 seconds.
To count from 1 to 28,163,728 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 28163728 cubic inches would be around 25.4 feet tall.

Recreational maths with 28163728

28163728 backwards is 82736182
The number of decimal digits it has is: 8
The sum of 28163728's digits is 37
More coming soon!

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The information we have on file for 28163728 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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