20728356

20,728,356 is an even composite number composed of five prime numbers multiplied together.

What does the number 20728356 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

20728356 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 20728356:

2² × 3 × 11 × 373 × 421

(2 × 2 × 3 × 11 × 373 × 421)

See below for interesting mathematical facts about the number 20728356 from the Numbermatics database.

Names of 20728356

Cardinal: 20728356 can be written as Twenty million, seven hundred twenty-eight thousand, three hundred fifty-six.

Scientific notation

Scientific notation: 2.0728356 × 10⁷

Factors of 20728356

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 810

Divisors of 20728356

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 6 11 12 22 33 44 66 132 373 421 746 842 1119 1263 1492 1684 2238 2526 4103 4476 4631 5052 8206 9262 12309 13893 16412 18524 24618 27786 49236 55572 157033 314066 471099 628132 942198 1727363 1884396 3454726 5182089 6909452 10364178 20728356
Sum of all divisors σ(n): 53030208
Sum of proper divisors (its aliquot sum) s(n): 32301852
20728356 is an abundant number, because the sum of its proper divisors (32301852) is greater than itself. Its abundance is 11573496

Bases of 20728356

Binary: 1001111000100101000100100₂
Hexadecimal: 0x13C4A24
Base-36: CCA3O

Squares and roots of 20728356

20728356 squared (20728356²) is 429664742462736
20728356 cubed (20728356³) is 8906243742415908542016
The square root of 20728356 is 4552.8404320819
The cube root of 20728356 is 274.6976555929

Scales and comparisons

How big is 20728356?

20,728,356 seconds is equal to 34 weeks, 1 day, 21 hours, 52 minutes, 36 seconds.
To count from 1 to 20,728,356 would take you about fifty-one 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 20728356 cubic inches would be around 22.9 feet tall.

Recreational maths with 20728356

20728356 backwards is 65382702
20728356 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 20728356's digits is 33
More coming soon!

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The information we have on file for 20728356 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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