28437728

28,437,728 is an even composite number composed of three prime numbers multiplied together.

What does the number 28437728 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 24 divisors.

28437728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 28437728:

2⁵ × 11 × 80789

(2 × 2 × 2 × 2 × 2 × 11 × 80789)

See below for interesting mathematical facts about the number 28437728 from the Numbermatics database.

Names of 28437728

Cardinal: 28437728 can be written as Twenty-eight million, four hundred thirty-seven thousand, seven hundred twenty-eight.

Scientific notation

Scientific notation: 2.8437728 × 10⁷

Factors of 28437728

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 7
Sum of prime factors: 80802

Divisors of 28437728

Number of divisors d(n): 24
Complete list of divisors:
1 2 4 8 11 16 22 32 44 88 176 352 80789 161578 323156 646312 888679 1292624 1777358 2585248 3554716 7109432 14218864 28437728
Sum of all divisors σ(n): 61077240
Sum of proper divisors (its aliquot sum) s(n): 32639512
28437728 is an abundant number, because the sum of its proper divisors (32639512) is greater than itself. Its abundance is 4201784

Bases of 28437728

Binary: 1101100011110110011100000₂
Hexadecimal: 0x1B1ECE0
Base-36: GXIOW

Squares and roots of 28437728

28437728 squared (28437728²) is 808704373801984
28437728 cubed (28437728³) is 22997715014591146852352
The square root of 28437728 is 5332.7036294923
The cube root of 28437728 is 305.2331031761

Scales and comparisons

How big is 28437728?

28,437,728 seconds is equal to 47 weeks, 3 hours, 22 minutes, 8 seconds.
To count from 1 to 28,437,728 would take you about eighteen 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 28437728 cubic inches would be around 25.4 feet tall.

Recreational maths with 28437728

28437728 backwards is 82773482
The number of decimal digits it has is: 8
The sum of 28437728's digits is 41
More coming soon!

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The information we have on file for 28437728 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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