28706720
28,706,720 is an even composite number composed of five prime numbers multiplied together.
28706720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 28706720:
25 × 5 × 7 × 192 × 71
(2 × 2 × 2 × 2 × 2 × 5 × 7 × 19 × 19 × 71)See below for interesting mathematical facts about the number 28706720 from the Numbermatics database.
Names of 28706720
- Cardinal: 28706720 can be written as Twenty-eight million, seven hundred six thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.870672 × 107
Factors of 28706720
Divisors of 28706720
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 56 70 71 76 80 95 112 133 140 142 152 160 190 224 266 280 284 304 355 361 380 497 532 560 568 608 665 710 722 760 994 1064 1120 1136 1330 1349 1420 1444 1520 1805 1988 2128 2272 2485 2527 2660 2698 2840 2888 3040 3610 3976 4256 4970 5054 5320 5396 5680 5776 6745 7220 7952 9443 9940 10108 10640 10792 11360 11552 12635 13490 14440 15904 18886 19880 20216 21280 21584 25270 25631 26980 28880 37772 39760 40432 43168 47215 50540 51262 53960 57760 75544 79520 80864 94430 101080 102524 107920 128155 151088 179417 188860 202160 205048 215840 256310 302176 358834 377720 404320 410096 512620 717668 755440 820192 897085 1025240 1435336 1510880 1794170 2050480 2870672 3588340 4100960 5741344 7176680 14353360 28706720
- Sum of all divisors σ(n): 82954368
- Sum of proper divisors (its aliquot sum) s(n): 54247648
- 28706720 is an abundant number, because the sum of its proper divisors (54247648) is greater than itself. Its abundance is 25540928
Bases of 28706720
- Binary: 11011011000000111101000002
- Hexadecimal: 0x1B607A0
- Base-36: H3A8W
Squares and roots of 28706720
- 28706720 squared (287067202) is 824075773158400
- 28706720 cubed (287067203) is 23656512478841704448000
-
The
square root of 28706720 is 5357.8652465325 -
The
cube root of 28706720 is 306.1924828815
Scales and comparisons
How big is 28706720?- 28,706,720 seconds is equal to 47 weeks, 3 days, 6 hours, 5 minutes, 20 seconds.
-
To count from 1 to 28,706,720 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 28706720 cubic inches would be around 25.5 feet tall.
Recreational maths with 28706720
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The information we have on file for 28706720 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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