21051216
21,051,216 is an even composite number composed of four prime numbers multiplied together.
21051216 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of ninety divisors.
Prime factorization of 21051216:
24 × 32 × 29 × 712
(2 × 2 × 2 × 2 × 3 × 3 × 29 × 71 × 71)See below for interesting mathematical facts about the number 21051216 from the Numbermatics database.
Names of 21051216
- Cardinal: 21051216 can be written as Twenty-one million, fifty-one thousand, two hundred sixteen.
Scientific notation
- Scientific notation: 2.1051216 × 107
Factors of 21051216
Divisors of 21051216
- Number of divisors d(n): 90
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 29 36 48 58 71 72 87 116 142 144 174 213 232 261 284 348 426 464 522 568 639 696 852 1044 1136 1278 1392 1704 2059 2088 2556 3408 4118 4176 5041 5112 6177 8236 10082 10224 12354 15123 16472 18531 20164 24708 30246 32944 37062 40328 45369 49416 60492 74124 80656 90738 98832 120984 146189 148248 181476 241968 292378 296496 362952 438567 584756 725904 877134 1169512 1315701 1754268 2339024 2631402 3508536 5262804 7017072 10525608 21051216
- Sum of all divisors σ(n): 61816170
- Sum of proper divisors (its aliquot sum) s(n): 40764954
- 21051216 is an abundant number, because the sum of its proper divisors (40764954) is greater than itself. Its abundance is 19713738
Bases of 21051216
- Binary: 10100000100110111010100002
- Hexadecimal: 0x1413750
- Base-36: CJ780
Squares and roots of 21051216
- 21051216 squared (210512162) is 443153695078656
- 21051216 cubed (210512163) is 9328924156298924445696
-
The
square root of 21051216 is 4588.1604156785 -
The
cube root of 21051216 is 276.1165229477
Scales and comparisons
How big is 21051216?- 21,051,216 seconds is equal to 34 weeks, 5 days, 15 hours, 33 minutes, 36 seconds.
-
To count from 1 to 21,051,216 would take you about eleven 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 21051216 cubic inches would be around 23 feet tall.
Recreational maths with 21051216
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 21051216 - Facts about the integer". Numbermatics.com. 2024. Web. 2 May 2024.
APA style:
Numbermatics. (2024). Number 21051216 - Facts about the integer. Retrieved 2 May 2024, from https://numbermatics.com/n/21051216/
Chicago style:
Numbermatics. 2024. "Number 21051216 - Facts about the integer". https://numbermatics.com/n/21051216/
The information we have on file for 21051216 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 21051216, math, Factors of 21051216, curriculum, school, college, exams, university, Prime factorization of 21051216, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, fifty-one thousand, two hundred sixteen.