21298242
21,298,242 is an even composite number composed of five prime numbers multiplied together.
21298242 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21298242:
2 × 3 × 73 × 79 × 131
(2 × 3 × 7 × 7 × 7 × 79 × 131)See below for interesting mathematical facts about the number 21298242 from the Numbermatics database.
Names of 21298242
- Cardinal: 21298242 can be written as Twenty-one million, two hundred ninety-eight thousand, two hundred forty-two.
Scientific notation
- Scientific notation: 2.1298242 × 107
Factors of 21298242
Divisors of 21298242
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 6 7 14 21 42 49 79 98 131 147 158 237 262 294 343 393 474 553 686 786 917 1029 1106 1659 1834 2058 2751 3318 3871 5502 6419 7742 10349 11613 12838 19257 20698 23226 27097 31047 38514 44933 54194 62094 72443 81291 89866 134799 144886 162582 217329 269598 434658 507101 1014202 1521303 3042606 3549707 7099414 10649121 21298242
- Sum of all divisors σ(n): 50688000
- Sum of proper divisors (its aliquot sum) s(n): 29389758
- 21298242 is an abundant number, because the sum of its proper divisors (29389758) is greater than itself. Its abundance is 8091516
Bases of 21298242
- Binary: 10100010011111100010000102
- Hexadecimal: 0x144FC42
- Base-36: COHTU
Squares and roots of 21298242
- 21298242 squared (212982422) is 453615112290564
- 21298242 cubed (212982423) is 9661204436421606388488
-
The
square root of 21298242 is 4615.0018418197 -
The
cube root of 21298242 is 277.1923577119
Scales and comparisons
How big is 21298242?- 21,298,242 seconds is equal to 35 weeks, 1 day, 12 hours, 10 minutes, 42 seconds.
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To count from 1 to 21,298,242 would take you about five days!
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 21298242 cubic inches would be around 23.1 feet tall.
Recreational maths with 21298242
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The information we have on file for 21298242 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!
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