21389400
21,389,400 is an even composite number composed of five prime numbers multiplied together.
21389400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 21389400:
23 × 33 × 52 × 17 × 233
(2 × 2 × 2 × 3 × 3 × 3 × 5 × 5 × 17 × 233)See below for interesting mathematical facts about the number 21389400 from the Numbermatics database.
Names of 21389400
- Cardinal: 21389400 can be written as Twenty-one million, three hundred eighty-nine thousand, four hundred.
Scientific notation
- Scientific notation: 2.13894 × 107
Factors of 21389400
Divisors of 21389400
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 25 27 30 34 36 40 45 50 51 54 60 68 72 75 85 90 100 102 108 120 135 136 150 153 170 180 200 204 216 225 233 255 270 300 306 340 360 408 425 450 459 466 510 540 600 612 675 680 699 765 850 900 918 932 1020 1080 1165 1224 1275 1350 1398 1530 1700 1800 1836 1864 2040 2097 2295 2330 2550 2700 2796 3060 3400 3495 3672 3825 3961 4194 4590 4660 5100 5400 5592 5825 6120 6291 6990 7650 7922 8388 9180 9320 10200 10485 11475 11650 11883 12582 13980 15300 15844 16776 17475 18360 19805 20970 22950 23300 23766 25164 27960 30600 31455 31688 34950 35649 39610 41940 45900 46600 47532 50328 52425 59415 62910 69900 71298 79220 83880 91800 95064 99025 104850 106947 118830 125820 139800 142596 157275 158440 178245 198050 209700 213894 237660 251640 285192 297075 314550 356490 396100 419400 427788 475320 534735 594150 629100 712980 792200 855576 891225 1069470 1188300 1258200 1425960 1782450 2138940 2376600 2673675 3564900 4277880 5347350 7129800 10694700 21389400
- Sum of all divisors σ(n): 78343200
- Sum of proper divisors (its aliquot sum) s(n): 56953800
- 21389400 is an abundant number, because the sum of its proper divisors (56953800) is greater than itself. Its abundance is 35564400
Bases of 21389400
- Binary: 10100011001100000010110002
- Hexadecimal: 0x1466058
- Base-36: CQG60
Squares and roots of 21389400
- 21389400 squared (213894002) is 457506432360000
- 21389400 cubed (213894003) is 9785788084320984000000
-
The
square root of 21389400 is 4624.8675656715 -
The
cube root of 21389400 is 277.5872625493
Scales and comparisons
How big is 21389400?- 21,389,400 seconds is equal to 35 weeks, 2 days, 13 hours, 30 minutes.
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To count from 1 to 21,389,400 would take you about eight 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 21389400 cubic inches would be around 23.1 feet tall.
Recreational maths with 21389400
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The information we have on file for 21389400 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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