11

11 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 11 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

11 is a prime number. Like all primes (except two), it is an odd number.

Prime factorization of 11:

11

See below for interesting mathematical facts about the number 11 from the Numbermatics database.

Names of 11

Cardinal: 11 can be written as Eleven.

Scientific notation

Scientific notation: 1.1 × 10¹

Factors of 11

Number of distinct prime factors ω(n): 1
Total number of prime factors Ω(n): 1
Sum of prime factors: 11

Divisors of 11

Number of divisors d(n): 2
Complete list of divisors:
1 11
Sum of all divisors σ(n): 12
Sum of proper divisors (its aliquot sum) s(n): 1
11 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 10

Bases of 11

Binary: 1011₂
Hexadecimal: 0xB
Base-36: B

Squares and roots of 11

11 squared (11²) is 121
11 cubed (11³) is 1331
The square root of 11 is 3.3166247901
The cube root of 11 is 2.2239800905

Scales and comparisons

How big is 11?

A cube with a volume of 11 cubic inches would be around 0.2 feet tall.

Recreational maths with 11

11 is the same when its digits are reversed! That makes it a palindromic prime number.
11 is a twin prime! Its twin is 13
The number of decimal digits it has is: 2
The sum of 11's digits is 2
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/11/?utm_source=shared">Number 11 - 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/11/?utm_source=shared]Number 11 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 11 - Facts about the integer". Numbermatics.com. 2024. Web. 13 October 2024.

APA style:
Numbermatics. (2024). Number 11 - Facts about the integer. Retrieved 13 October 2024, from https://numbermatics.com/n/11/

Chicago style:
Numbermatics. 2024. "Number 11 - Facts about the integer". https://numbermatics.com/n/11/

The information we have on file for 11 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 11, math, Factors of 11, curriculum, school, college, exams, university, Prime factorization of 11, STEM, science, technology, engineering, physics, economics, calculator, eleven.