21397572
21,397,572 is an even composite number composed of six prime numbers multiplied together.
21397572 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21397572:
22 × 32 × 7 × 19 × 41 × 109
(2 × 2 × 3 × 3 × 7 × 19 × 41 × 109)See below for interesting mathematical facts about the number 21397572 from the Numbermatics database.
Names of 21397572
- Cardinal: 21397572 can be written as Twenty-one million, three hundred ninety-seven thousand, five hundred seventy-two.
Scientific notation
- Scientific notation: 2.1397572 × 107
Factors of 21397572
Divisors of 21397572
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 6 7 9 12 14 18 19 21 28 36 38 41 42 57 63 76 82 84 109 114 123 126 133 164 171 218 228 246 252 266 287 327 342 369 399 436 492 532 574 654 684 738 763 779 798 861 981 1148 1197 1308 1476 1526 1558 1596 1722 1962 2071 2289 2337 2394 2583 3052 3116 3444 3924 4142 4469 4578 4674 4788 5166 5453 6213 6867 7011 8284 8938 9156 9348 10332 10906 12426 13407 13734 14022 14497 16359 17876 18639 21812 24852 26814 27468 28044 28994 31283 32718 37278 40221 43491 49077 53628 57988 62566 65436 74556 80442 84911 86982 93849 98154 125132 130473 160884 169822 173964 187698 196308 254733 260946 281547 339644 375396 509466 521892 563094 594377 764199 1018932 1126188 1188754 1528398 1783131 2377508 3056796 3566262 5349393 7132524 10698786 21397572
- Sum of all divisors σ(n): 67267200
- Sum of proper divisors (its aliquot sum) s(n): 45869628
- 21397572 is an abundant number, because the sum of its proper divisors (45869628) is greater than itself. Its abundance is 24472056
Bases of 21397572
- Binary: 10100011010000000010001002
- Hexadecimal: 0x1468044
- Base-36: CQMH0
Squares and roots of 21397572
- 21397572 squared (213975722) is 457856087495184
- 21397572 cubed (213975723) is 9797008597816499293248
-
The
square root of 21397572 is 4625.7509660595 -
The
cube root of 21397572 is 277.6226095635
Scales and comparisons
How big is 21397572?- 21,397,572 seconds is equal to 35 weeks, 2 days, 15 hours, 46 minutes, 12 seconds.
-
To count from 1 to 21,397,572 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 21397572 cubic inches would be around 23.1 feet tall.
Recreational maths with 21397572
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 21397572 - Facts about the integer". Numbermatics.com. 2024. Web. 2 May 2024.
APA style:
Numbermatics. (2024). Number 21397572 - Facts about the integer. Retrieved 2 May 2024, from https://numbermatics.com/n/21397572/
Chicago style:
Numbermatics. 2024. "Number 21397572 - Facts about the integer". https://numbermatics.com/n/21397572/
The information we have on file for 21397572 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 21397572, math, Factors of 21397572, curriculum, school, college, exams, university, Prime factorization of 21397572, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, three hundred ninety-seven thousand, five hundred seventy-two.