2191221

2,191,221 is an odd composite number composed of two prime numbers multiplied together.

What does the number 2191221 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

2191221 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 2191221:

3² × 243469

(3 × 3 × 243469)

See below for interesting mathematical facts about the number 2191221 from the Numbermatics database.

Names of 2191221

Cardinal: 2191221 can be written as Two million, one hundred ninety-one thousand, two hundred twenty-one.

Scientific notation

Scientific notation: 2.191221 × 10⁶

Factors of 2191221

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 243472

Divisors of 2191221

Number of divisors d(n): 6
Complete list of divisors:
1 3 9 243469 730407 2191221
Sum of all divisors σ(n): 3165110
Sum of proper divisors (its aliquot sum) s(n): 973889
2191221 is a deficient number, because the sum of its proper divisors (973889) is less than itself. Its deficiency is 1217332

Bases of 2191221

Binary: 1000010110111101110101₂
Hexadecimal: 0x216F75
Base-36: 1AYR9

Squares and roots of 2191221

2191221 squared (2191221²) is 4801449470841
2191221 cubed (2191221³) is 10521036910945686861
The square root of 2191221 is 1480.2773388795
The cube root of 2191221 is 129.8859156913

Scales and comparisons

How big is 2191221?

2,191,221 seconds is equal to 3 weeks, 4 days, 8 hours, 40 minutes, 21 seconds.
To count from 1 to 2,191,221 would take you about five 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 2191221 cubic inches would be around 10.8 feet tall.

Recreational maths with 2191221

2191221 backwards is 1221912
The number of decimal digits it has is: 7
The sum of 2191221's digits is 18
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/2191221/?utm_source=shared">Number 2191221 - 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/2191221/?utm_source=shared]Number 2191221 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 2191221 - Facts about the integer". Numbermatics.com. 2024. Web. 1 May 2024.

APA style:
Numbermatics. (2024). Number 2191221 - Facts about the integer. Retrieved 1 May 2024, from https://numbermatics.com/n/2191221/

Chicago style:
Numbermatics. 2024. "Number 2191221 - Facts about the integer". https://numbermatics.com/n/2191221/

The information we have on file for 2191221 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 2191221, math, Factors of 2191221, curriculum, school, college, exams, university, Prime factorization of 2191221, STEM, science, technology, engineering, physics, economics, calculator, two million, one hundred ninety-one thousand, two hundred twenty-one.