169

169 is an odd composite number. It is composed of a single prime number multiplied by itself.

What does the number 169 look like?

This visualization shows the relationship between its 1 prime factors (large circles) and 3 divisors.

169 is an odd composite number. It has a total of three divisors.

Prime factorization of 169:

13²

(13 × 13)

See below for interesting mathematical facts about the number 169 from the Numbermatics database.

Names of 169

Cardinal: 169 can be written as One hundred sixty-nine.

Scientific notation

Scientific notation: 1.69 × 10²

Factors of 169

Number of distinct prime factors ω(n): 1
Total number of prime factors Ω(n): 2
Sum of prime factors: 13

Divisors of 169

Number of divisors d(n): 3
Complete list of divisors:
1 13 169
Sum of all divisors σ(n): 183
Sum of proper divisors (its aliquot sum) s(n): 14
169 is a deficient number, because the sum of its proper divisors (14) is less than itself. Its deficiency is 155

Bases of 169

Binary: 10101001₂
Hexadecimal: 0xA9
Base-36: 4P

Squares and roots of 169

169 squared (169²) is 28561
169 cubed (169³) is 4826809
169 is a perfect square number. Its square root is 13
The cube root of 169 is 5.5287748137

Scales and comparisons

How big is 169?

169 seconds is equal to 2 minutes, 49 seconds.
To count from 1 to 169 would take you about twenty-four seconds.

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 169 cubic inches would be around 0.5 feet tall.

Recreational maths with 169

169 backwards is 961
The number of decimal digits it has is: 3
The sum of 169's digits is 16
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/169/?utm_source=shared">Number 169 - 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/169/?utm_source=shared]Number 169 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 169 - Facts about the integer". Numbermatics.com. 2023. Web. 4 October 2023.

APA style:
Numbermatics. (2023). Number 169 - Facts about the integer. Retrieved 4 October 2023, from https://numbermatics.com/n/169/

Chicago style:
Numbermatics. 2023. "Number 169 - Facts about the integer". https://numbermatics.com/n/169/

The information we have on file for 169 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 169, math, Factors of 169, curriculum, school, college, exams, university, Prime factorization of 169, STEM, science, technology, engineering, physics, economics, calculator, one hundred sixty-nine.