21550921

21,550,921 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21550921 look like?

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

21550921 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 21550921:

7 × 19 × 31 × 5227

See below for interesting mathematical facts about the number 21550921 from the Numbermatics database.

Names of 21550921

Cardinal: 21550921 can be written as Twenty-one million, five hundred fifty thousand, nine hundred twenty-one.

Scientific notation

Scientific notation: 2.1550921 × 10⁷

Factors of 21550921

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 5284

Divisors of 21550921

Number of divisors d(n): 16
Complete list of divisors:
1 7 19 31 133 217 589 4123 5227 36589 99313 162037 695191 1134259 3078703 21550921
Sum of all divisors σ(n): 26767360
Sum of proper divisors (its aliquot sum) s(n): 5216439
21550921 is a deficient number, because the sum of its proper divisors (5216439) is less than itself. Its deficiency is 16334482

Bases of 21550921

Binary: 1010010001101011101001001₂
Hexadecimal: 0x148D749
Base-36: CTWSP

Squares and roots of 21550921

21550921 squared (21550921²) is 464442195948241
21550921 cubed (21550921³) is 10009157073947061879961
The square root of 21550921 is 4642.2969530179
The cube root of 21550921 is 278.2842399299

Scales and comparisons

How big is 21550921?

21,550,921 seconds is equal to 35 weeks, 4 days, 10 hours, 22 minutes, 1 second.
To count from 1 to 21,550,921 would take you about three 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 21550921 cubic inches would be around 23.2 feet tall.

Recreational maths with 21550921

21550921 backwards is 12905512
The number of decimal digits it has is: 8
The sum of 21550921's digits is 25
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/21550921/?utm_source=shared">Number 21550921 - 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/21550921/?utm_source=shared]Number 21550921 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 21550921 - Facts about the integer". Numbermatics.com. 2024. Web. 31 May 2024.

APA style:
Numbermatics. (2024). Number 21550921 - Facts about the integer. Retrieved 31 May 2024, from https://numbermatics.com/n/21550921/

Chicago style:
Numbermatics. 2024. "Number 21550921 - Facts about the integer". https://numbermatics.com/n/21550921/

The information we have on file for 21550921 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 21550921, math, Factors of 21550921, curriculum, school, college, exams, university, Prime factorization of 21550921, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, five hundred fifty thousand, nine hundred twenty-one.