21049721

21,049,721 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21049721 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

21049721 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 21049721:

7 × 11 × 461 × 593

See below for interesting mathematical facts about the number 21049721 from the Numbermatics database.

Names of 21049721

Cardinal: 21049721 can be written as Twenty-one million, forty-nine thousand, seven hundred twenty-one.

Scientific notation

Scientific notation: 2.1049721 × 10⁷

Factors of 21049721

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 1072

Divisors of 21049721

Number of divisors d(n): 16
Complete list of divisors:
1 7 11 77 461 593 3227 4151 5071 6523 35497 45661 273373 1913611 3007103 21049721
Sum of all divisors σ(n): 26345088
Sum of proper divisors (its aliquot sum) s(n): 5295367
21049721 is a deficient number, because the sum of its proper divisors (5295367) is less than itself. Its deficiency is 15754354

Bases of 21049721

Binary: 1010000010011000101111001₂
Hexadecimal: 0x1413179
Base-36: CJ62H

Squares and roots of 21049721

21049721 squared (21049721²) is 443090754177841
21049721 cubed (21049721³) is 9326936753123137432361
The square root of 21049721 is 4587.9974934607
The cube root of 21049721 is 276.1099864451

Scales and comparisons

How big is 21049721?

21,049,721 seconds is equal to 34 weeks, 5 days, 15 hours, 8 minutes, 41 seconds.
To count from 1 to 21,049,721 would take you about ten 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 21049721 cubic inches would be around 23 feet tall.

Recreational maths with 21049721

21049721 backwards is 12794012
The number of decimal digits it has is: 8
The sum of 21049721's digits is 26
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/21049721/?utm_source=shared">Number 21049721 - 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/21049721/?utm_source=shared]Number 21049721 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 21049721 - Facts about the integer". Numbermatics.com. 2024. Web. 31 May 2024.

APA style:
Numbermatics. (2024). Number 21049721 - Facts about the integer. Retrieved 31 May 2024, from https://numbermatics.com/n/21049721/

Chicago style:
Numbermatics. 2024. "Number 21049721 - Facts about the integer". https://numbermatics.com/n/21049721/

The information we have on file for 21049721 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 21049721, math, Factors of 21049721, curriculum, school, college, exams, university, Prime factorization of 21049721, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, forty-nine thousand, seven hundred twenty-one.