21091824
21,091,824 is an even composite number composed of five prime numbers multiplied together.
21091824 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 21091824:
24 × 32 × 13 × 19 × 593
(2 × 2 × 2 × 2 × 3 × 3 × 13 × 19 × 593)See below for interesting mathematical facts about the number 21091824 from the Numbermatics database.
Names of 21091824
- Cardinal: 21091824 can be written as Twenty-one million, ninety-one thousand, eight hundred twenty-four.
Scientific notation
- Scientific notation: 2.1091824 × 107
Factors of 21091824
Divisors of 21091824
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 3 4 6 8 9 12 13 16 18 19 24 26 36 38 39 48 52 57 72 76 78 104 114 117 144 152 156 171 208 228 234 247 304 312 342 456 468 494 593 624 684 741 912 936 988 1186 1368 1482 1779 1872 1976 2223 2372 2736 2964 3558 3952 4446 4744 5337 5928 7116 7709 8892 9488 10674 11267 11856 14232 15418 17784 21348 22534 23127 28464 30836 33801 35568 42696 45068 46254 61672 67602 69381 85392 90136 92508 101403 123344 135204 138762 146471 180272 185016 202806 270408 277524 292942 370032 405612 439413 540816 555048 585884 811224 878826 1110096 1171768 1318239 1622448 1757652 2343536 2636478 3515304 5272956 7030608 10545912 21091824
- Sum of all divisors σ(n): 67026960
- Sum of proper divisors (its aliquot sum) s(n): 45935136
- 21091824 is an abundant number, because the sum of its proper divisors (45935136) is greater than itself. Its abundance is 24843312
Bases of 21091824
- Binary: 10100000111010101111100002
- Hexadecimal: 0x141D5F0
- Base-36: CK2K0
Squares and roots of 21091824
- 21091824 squared (210918242) is 444865039646976
- 21091824 cubed (210918243) is 9383015119987039924224
-
The
square root of 21091824 is 4592.5835866101 -
The
cube root of 21091824 is 276.2939527263
Scales and comparisons
How big is 21091824?- 21,091,824 seconds is equal to 34 weeks, 6 days, 2 hours, 50 minutes, 24 seconds.
-
To count from 1 to 21,091,824 would take you about two 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 21091824 cubic inches would be around 23 feet tall.
Recreational maths with 21091824
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The information we have on file for 21091824 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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