21312672438
21,312,672,438 is an even composite number composed of seven prime numbers multiplied together.
21312672438 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21312672438:
2 × 3 × 17 × 19 × 37 × 83 × 3581
See below for interesting mathematical facts about the number 21312672438 from the Numbermatics database.
Names of 21312672438
- Cardinal: 21312672438 can be written as Twenty-one billion, three hundred twelve million, six hundred seventy-two thousand, four hundred thirty-eight.
Scientific notation
- Scientific notation: 2.1312672438 × 1010
Factors of 21312672438
Divisors of 21312672438
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 6 17 19 34 37 38 51 57 74 83 102 111 114 166 222 249 323 498 629 646 703 969 1258 1406 1411 1577 1887 1938 2109 2822 3071 3154 3581 3774 4218 4233 4731 6142 7162 8466 9213 9462 10743 11951 18426 21486 23902 26809 35853 52207 53618 58349 60877 68039 71706 80427 104414 116698 121754 132497 136078 156621 160854 175047 182631 204117 264994 297223 313242 350094 365262 397491 408234 594446 794982 891669 991933 1156663 1783338 1983866 2252449 2313326 2517443 2975799 3469989 4504898 5034886 5052791 5647237 5951598 6757347 6939978 7552329 10105582 10997251 11294474 13514694 15104658 15158373 16941711 21994502 30316746 32991753 33883422 42796531 65983506 85593062 96003029 128389593 186953267 192006058 208947769 256779186 288009087 373906534 417895538 560859801 576018174 626843307 1121719602 1253686614 3552112073 7104224146 10656336219 21312672438
- Sum of all divisors σ(n): 49393774080
- Sum of proper divisors (its aliquot sum) s(n): 28081101642
- 21312672438 is an abundant number, because the sum of its proper divisors (28081101642) is greater than itself. Its abundance is 6768429204
Bases of 21312672438
- Binary: 100111101100101010110010010101101102
- Hexadecimal: 0x4F65592B6
- Base-36: 9SH0JAU
Squares and roots of 21312672438
- 21312672438 squared (213126724382) is 454230006449484863844
- 21312672438 cubed (213126724383) is 9680855338968498296946201531672
-
The
square root of 21312672438 is 145988.6037949539 -
The
cube root of 21312672438 is 2772.5494666623
Scales and comparisons
How big is 21312672438?- 21,312,672,438 seconds is equal to 677 years, 35 weeks, 1 day, 10 hours, 47 minutes, 18 seconds.
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To count from 1 to 21,312,672,438 would take you about one thousand, three hundred fifty-five 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 21312672438 cubic inches would be around 231 feet tall.
Recreational maths with 21312672438
- 21312672438 backwards is 83427621312
- The number of decimal digits it has is: 11
- The sum of 21312672438's digits is 39
- More coming soon!
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The information we have on file for 21312672438 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 21312672438, math, Factors of 21312672438, curriculum, school, college, exams, university, Prime factorization of 21312672438, STEM, science, technology, engineering, physics, economics, calculator, twenty-one billion, three hundred twelve million, six hundred seventy-two thousand, four hundred thirty-eight.