20385

20,385 is an odd composite number composed of three prime numbers multiplied together.

What does the number 20385 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 16 divisors.

20385 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 20385:

3³ × 5 × 151

(3 × 3 × 3 × 5 × 151)

See below for interesting mathematical facts about the number 20385 from the Numbermatics database.

Names of 20385

Cardinal: 20385 can be written as Twenty thousand, three hundred eighty-five.

Scientific notation

Scientific notation: 2.0385 × 10⁴

Factors of 20385

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 159

Divisors of 20385

Number of divisors d(n): 16
Complete list of divisors:
1 3 5 9 15 27 45 135 151 453 755 1359 2265 4077 6795 20385
Sum of all divisors σ(n): 36480
Sum of proper divisors (its aliquot sum) s(n): 16095
20385 is a deficient number, because the sum of its proper divisors (16095) is less than itself. Its deficiency is 4290

Bases of 20385

Binary: 100111110100001₂
Hexadecimal: 0x4FA1
Base-36: FQ9

Squares and roots of 20385

20385 squared (20385²) is 415548225
20385 cubed (20385³) is 8470950566625
The square root of 20385 is 142.7760484115
The cube root of 20385 is 27.3172454739

Scales and comparisons

How big is 20385?

20,385 seconds is equal to 5 hours, 39 minutes, 45 seconds.
To count from 1 to 20,385 would take you about five 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 20385 cubic inches would be around 2.3 feet tall.

Recreational maths with 20385

20385 backwards is 58302
The number of decimal digits it has is: 5
The sum of 20385'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/20385/?utm_source=shared">Number 20385 - 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/20385/?utm_source=shared]Number 20385 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 20385 - Facts about the integer". Numbermatics.com. 2024. Web. 23 April 2024.

APA style:
Numbermatics. (2024). Number 20385 - Facts about the integer. Retrieved 23 April 2024, from https://numbermatics.com/n/20385/

Chicago style:
Numbermatics. 2024. "Number 20385 - Facts about the integer". https://numbermatics.com/n/20385/

The information we have on file for 20385 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 20385, math, Factors of 20385, curriculum, school, college, exams, university, Prime factorization of 20385, STEM, science, technology, engineering, physics, economics, calculator, twenty thousand, three hundred eighty-five.