21421643994
21,421,643,994 is an even composite number composed of six prime numbers multiplied together.
21421643994 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21421643994:
2 × 33 × 31 × 73 × 307 × 571
(2 × 3 × 3 × 3 × 31 × 73 × 307 × 571)See below for interesting mathematical facts about the number 21421643994 from the Numbermatics database.
Names of 21421643994
- Cardinal: 21421643994 can be written as Twenty-one billion, four hundred twenty-one million, six hundred forty-three thousand, nine hundred ninety-four.
Scientific notation
- Scientific notation: 2.1421643994 × 1010
Factors of 21421643994
Divisors of 21421643994
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 6 9 18 27 31 54 62 73 93 146 186 219 279 307 438 558 571 614 657 837 921 1142 1314 1674 1713 1842 1971 2263 2763 3426 3942 4526 5139 5526 6789 8289 9517 10278 13578 15417 16578 17701 19034 20367 22411 28551 30834 35402 40734 41683 44822 53103 57102 61101 67233 83366 85653 106206 122202 125049 134466 159309 171306 175297 201699 250098 256959 318618 350594 375147 403398 477927 513918 525891 605097 694741 750294 955854 1051782 1125441 1210194 1292173 1389482 1577673 2084223 2250882 2584346 3155346 3876519 4168446 4733019 5434207 6252669 7753038 9466038 10868414 11629557 12505338 12796681 16302621 18758007 23259114 25593362 32605242 34888671 37516014 38390043 48907863 69777342 76780086 97815726 115170129 146723589 230340258 293447178 345510387 396697111 691020774 793394222 1190091333 2380182666 3570273999 7140547998 10710821997 21421643994
- Sum of all divisors σ(n): 50062172160
- Sum of proper divisors (its aliquot sum) s(n): 28640528166
- 21421643994 is an abundant number, because the sum of its proper divisors (28640528166) is greater than itself. Its abundance is 7218884172
Bases of 21421643994
- Binary: 100111111001101010001011000110110102
- Hexadecimal: 0x4FCD458DA
- Base-36: 9U9W6AI
Squares and roots of 21421643994
- 21421643994 squared (214216439942) is 458886831405676272036
- 21421643994 cubed (214216439943) is 9830110335907095690368289551784
-
The
square root of 21421643994 is 146361.3473359685 -
The
cube root of 21421643994 is 2777.2667783951
Scales and comparisons
How big is 21421643994?- 21,421,643,994 seconds is equal to 681 years, 7 weeks, 2 days, 16 hours, 39 minutes, 54 seconds.
-
To count from 1 to 21,421,643,994 would take you about one thousand, three hundred sixty-two years!
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 21421643994 cubic inches would be around 231.4 feet tall.
Recreational maths with 21421643994
- 21421643994 backwards is 49934612412
- The number of decimal digits it has is: 11
- The sum of 21421643994's digits is 45
- More coming soon!
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 21421643994 - Facts about the integer". Numbermatics.com. 2024. Web. 12 June 2024.
APA style:
Numbermatics. (2024). Number 21421643994 - Facts about the integer. Retrieved 12 June 2024, from https://numbermatics.com/n/21421643994/
Chicago style:
Numbermatics. 2024. "Number 21421643994 - Facts about the integer". https://numbermatics.com/n/21421643994/
The information we have on file for 21421643994 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 21421643994, math, Factors of 21421643994, curriculum, school, college, exams, university, Prime factorization of 21421643994, STEM, science, technology, engineering, physics, economics, calculator, twenty-one billion, four hundred twenty-one million, six hundred forty-three thousand, nine hundred ninety-four.