21402468
21,402,468 is an even composite number composed of four prime numbers multiplied together.
21402468 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21402468:
22 × 35 × 97 × 227
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 97 × 227)See below for interesting mathematical facts about the number 21402468 from the Numbermatics database.
Names of 21402468
- Cardinal: 21402468 can be written as Twenty-one million, four hundred two thousand, four hundred sixty-eight.
Scientific notation
- Scientific notation: 2.1402468 × 107
Factors of 21402468
Divisors of 21402468
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 6 9 12 18 27 36 54 81 97 108 162 194 227 243 291 324 388 454 486 582 681 873 908 972 1164 1362 1746 2043 2619 2724 3492 4086 5238 6129 7857 8172 10476 12258 15714 18387 22019 23571 24516 31428 36774 44038 47142 55161 66057 73548 88076 94284 110322 132114 198171 220644 264228 396342 594513 792684 1189026 1783539 2378052 3567078 5350617 7134156 10701234 21402468
- Sum of all divisors σ(n): 56932512
- Sum of proper divisors (its aliquot sum) s(n): 35530044
- 21402468 is an abundant number, because the sum of its proper divisors (35530044) is greater than itself. Its abundance is 14127576
Bases of 21402468
- Binary: 10100011010010011011001002
- Hexadecimal: 0x1469364
- Base-36: CQQ90
Squares and roots of 21402468
- 21402468 squared (214024682) is 458065636491024
- 21402468 cubed (214024683) is 9803735126898773447232
-
The
square root of 21402468 is 4626.2801471593 -
The
cube root of 21402468 is 277.6437823183
Scales and comparisons
How big is 21402468?- 21,402,468 seconds is equal to 35 weeks, 2 days, 17 hours, 7 minutes, 48 seconds.
-
To count from 1 to 21,402,468 would take you about thirteen 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 21402468 cubic inches would be around 23.1 feet tall.
Recreational maths with 21402468
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The information we have on file for 21402468 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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