21409245
21,409,245 is an odd composite number composed of five prime numbers multiplied together.
21409245 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21409245:
33 × 5 × 11 × 13 × 1109
(3 × 3 × 3 × 5 × 11 × 13 × 1109)See below for interesting mathematical facts about the number 21409245 from the Numbermatics database.
Names of 21409245
- Cardinal: 21409245 can be written as Twenty-one million, four hundred nine thousand, two hundred forty-five.
Scientific notation
- Scientific notation: 2.1409245 × 107
Factors of 21409245
Divisors of 21409245
- Number of divisors d(n): 64
-
Complete list of divisors:
1 3 5 9 11 13 15 27 33 39 45 55 65 99 117 135 143 165 195 297 351 429 495 585 715 1109 1287 1485 1755 2145 3327 3861 5545 6435 9981 12199 14417 16635 19305 29943 36597 43251 49905 60995 72085 109791 129753 149715 158587 182985 216255 329373 389259 475761 548955 648765 792935 1427283 1646865 1946295 2378805 4281849 7136415 21409245
- Sum of all divisors σ(n): 44755200
- Sum of proper divisors (its aliquot sum) s(n): 23345955
- 21409245 is an abundant number, because the sum of its proper divisors (23345955) is greater than itself. Its abundance is 1936710
Bases of 21409245
- Binary: 10100011010101101110111012
- Hexadecimal: 0x146ADDD
- Base-36: CQVH9
Squares and roots of 21409245
- 21409245 squared (214092452) is 458355771470025
- 21409245 cubed (214092453) is 9813051008565775381125
-
The
square root of 21409245 is 4627.0125351031 -
The
cube root of 21409245 is 277.6730841315
Scales and comparisons
How big is 21409245?- 21,409,245 seconds is equal to 35 weeks, 2 days, 19 hours, 45 seconds.
-
To count from 1 to 21,409,245 would take you about sixteen 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 21409245 cubic inches would be around 23.1 feet tall.
Recreational maths with 21409245
Link to this page
HTML: To link to this page, just copy and paste the link below into your blog, web page or email.
BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:
Cite this page
MLA style:
"Number 21409245 - Facts about the integer". Numbermatics.com. 2024. Web. 22 September 2024.
APA style:
Numbermatics. (2024). Number 21409245 - Facts about the integer. Retrieved 22 September 2024, from https://numbermatics.com/n/21409245/
Chicago style:
Numbermatics. 2024. "Number 21409245 - Facts about the integer". https://numbermatics.com/n/21409245/
The information we have on file for 21409245 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 21409245, math, Factors of 21409245, curriculum, school, college, exams, university, Prime factorization of 21409245, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, four hundred nine thousand, two hundred forty-five.