28820720
28,820,720 is an even composite number composed of five prime numbers multiplied together.
28820720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 28820720:
24 × 5 × 19 × 67 × 283
(2 × 2 × 2 × 2 × 5 × 19 × 67 × 283)See below for interesting mathematical facts about the number 28820720 from the Numbermatics database.
Names of 28820720
- Cardinal: 28820720 can be written as Twenty-eight million, eight hundred twenty thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.882072 × 107
Factors of 28820720
Divisors of 28820720
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 8 10 16 19 20 38 40 67 76 80 95 134 152 190 268 283 304 335 380 536 566 670 760 1072 1132 1273 1340 1415 1520 2264 2546 2680 2830 4528 5092 5360 5377 5660 6365 10184 10754 11320 12730 18961 20368 21508 22640 25460 26885 37922 43016 50920 53770 75844 86032 94805 101840 107540 151688 189610 215080 303376 360259 379220 430160 720518 758440 1441036 1516880 1801295 2882072 3602590 5764144 7205180 14410360 28820720
- Sum of all divisors σ(n): 71840640
- Sum of proper divisors (its aliquot sum) s(n): 43019920
- 28820720 is an abundant number, because the sum of its proper divisors (43019920) is greater than itself. Its abundance is 14199200
Bases of 28820720
- Binary: 11011011111000100111100002
- Hexadecimal: 0x1B7C4F0
- Base-36: H5Q7K
Squares and roots of 28820720
- 28820720 squared (288207202) is 830633901318400
- 28820720 cubed (288207203) is 23939467092405237248000
-
The
square root of 28820720 is 5368.4932709279 -
The
cube root of 28820720 is 306.5972642777
Scales and comparisons
How big is 28820720?- 28,820,720 seconds is equal to 47 weeks, 4 days, 13 hours, 45 minutes, 20 seconds.
-
To count from 1 to 28,820,720 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 28820720 cubic inches would be around 25.5 feet tall.
Recreational maths with 28820720
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The information we have on file for 28820720 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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