21682728

21,682,728 is an even composite number composed of three prime numbers multiplied together.

What does the number 21682728 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 40 divisors.

21682728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 21682728:

2³ × 3⁴ × 33461

(2 × 2 × 2 × 3 × 3 × 3 × 3 × 33461)

See below for interesting mathematical facts about the number 21682728 from the Numbermatics database.

Names of 21682728

Cardinal: 21682728 can be written as Twenty-one million, six hundred eighty-two thousand, seven hundred twenty-eight.

Scientific notation

Scientific notation: 2.1682728 × 10⁷

Factors of 21682728

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 8
Sum of prime factors: 33466

Divisors of 21682728

Number of divisors d(n): 40
Complete list of divisors:
1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 33461 66922 100383 133844 200766 267688 301149 401532 602298 803064 903447 1204596 1806894 2409192 2710341 3613788 5420682 7227576 10841364 21682728
Sum of all divisors σ(n): 60733530
Sum of proper divisors (its aliquot sum) s(n): 39050802
21682728 is an abundant number, because the sum of its proper divisors (39050802) is greater than itself. Its abundance is 17368074

Bases of 21682728

Binary: 1010010101101101000101000₂
Hexadecimal: 0x14ADA28
Base-36: CWQI0

Squares and roots of 21682728

21682728 squared (21682728²) is 470140693521984
21682728 cubed (21682728³) is 10193932779368541092352
The square root of 21682728 is 4656.4716255981
The cube root of 21682728 is 278.8504227715

Scales and comparisons

How big is 21682728?

21,682,728 seconds is equal to 35 weeks, 5 days, 22 hours, 58 minutes, 48 seconds.
To count from 1 to 21,682,728 would take you about five days!

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 21682728 cubic inches would be around 23.2 feet tall.

Recreational maths with 21682728

21682728 backwards is 82728612
21682728 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21682728's digits is 36
More coming soon!

Copy this link to share with anyone:

Share this page on social media:

Link to this page

HTML: To link to this page, just copy and paste the link below into your blog, web page or email.

<a href="https://numbermatics.com/n/21682728/?utm_source=shared">Number 21682728 - Facts about the integer</a>

BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:

[url=https://numbermatics.com/n/21682728/?utm_source=shared]Number 21682728 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 21682728 - Facts about the integer". Numbermatics.com. 2024. Web. 6 May 2024.

APA style:
Numbermatics. (2024). Number 21682728 - Facts about the integer. Retrieved 6 May 2024, from https://numbermatics.com/n/21682728/

Chicago style:
Numbermatics. 2024. "Number 21682728 - Facts about the integer". https://numbermatics.com/n/21682728/

The information we have on file for 21682728 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!

Keywords: Divisors of 21682728, math, Factors of 21682728, curriculum, school, college, exams, university, Prime factorization of 21682728, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, six hundred eighty-two thousand, seven hundred twenty-eight.