28728560
28,728,560 is an even composite number composed of five prime numbers multiplied together.
28728560 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 28728560:
24 × 5 × 7 × 292 × 61
(2 × 2 × 2 × 2 × 5 × 7 × 29 × 29 × 61)See below for interesting mathematical facts about the number 28728560 from the Numbermatics database.
Names of 28728560
- Cardinal: 28728560 can be written as Twenty-eight million, seven hundred twenty-eight thousand, five hundred sixty.
Scientific notation
- Scientific notation: 2.872856 × 107
Factors of 28728560
Divisors of 28728560
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 29 35 40 56 58 61 70 80 112 116 122 140 145 203 232 244 280 290 305 406 427 464 488 560 580 610 812 841 854 976 1015 1160 1220 1624 1682 1708 1769 2030 2135 2320 2440 3248 3364 3416 3538 4060 4205 4270 4880 5887 6728 6832 7076 8120 8410 8540 8845 11774 12383 13456 14152 16240 16820 17080 17690 23548 24766 28304 29435 33640 34160 35380 47096 49532 51301 58870 61915 67280 70760 94192 99064 102602 117740 123830 141520 198128 205204 235480 247660 256505 359107 410408 470960 495320 513010 718214 820816 990640 1026020 1436428 1795535 2052040 2872856 3591070 4104080 5745712 7182140 14364280 28728560
- Sum of all divisors σ(n): 80354976
- Sum of proper divisors (its aliquot sum) s(n): 51626416
- 28728560 is an abundant number, because the sum of its proper divisors (51626416) is greater than itself. Its abundance is 22897856
Bases of 28728560
- Binary: 11011011001011100111100002
- Hexadecimal: 0x1B65CF0
- Base-36: H3R3K
Squares and roots of 28728560
- 28728560 squared (287285602) is 825330159673600
- 28728560 cubed (287285603) is 23710547011992598016000
-
The
square root of 28728560 is 5359.9029841967 -
The
cube root of 28728560 is 306.2701133535
Scales and comparisons
How big is 28728560?- 28,728,560 seconds is equal to 47 weeks, 3 days, 12 hours, 9 minutes, 20 seconds.
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To count from 1 to 28,728,560 would take you about nineteen weeks!
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 28728560 cubic inches would be around 25.5 feet tall.
Recreational maths with 28728560
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The information we have on file for 28728560 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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