28137720
28,137,720 is an even composite number composed of six prime numbers multiplied together.
28137720 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 28137720:
23 × 3 × 5 × 13 × 17 × 1061
(2 × 2 × 2 × 3 × 5 × 13 × 17 × 1061)See below for interesting mathematical facts about the number 28137720 from the Numbermatics database.
Names of 28137720
- Cardinal: 28137720 can be written as Twenty-eight million, one hundred thirty-seven thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.813772 × 107
Factors of 28137720
Divisors of 28137720
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 17 20 24 26 30 34 39 40 51 52 60 65 68 78 85 102 104 120 130 136 156 170 195 204 221 255 260 312 340 390 408 442 510 520 663 680 780 884 1020 1061 1105 1326 1560 1768 2040 2122 2210 2652 3183 3315 4244 4420 5304 5305 6366 6630 8488 8840 10610 12732 13260 13793 15915 18037 21220 25464 26520 27586 31830 36074 41379 42440 54111 55172 63660 68965 72148 82758 90185 108222 110344 127320 137930 144296 165516 180370 206895 216444 234481 270555 275860 331032 360740 413790 432888 468962 541110 551720 703443 721480 827580 937924 1082220 1172405 1406886 1655160 1875848 2164440 2344810 2813772 3517215 4689620 5627544 7034430 9379240 14068860 28137720
- Sum of all divisors σ(n): 96344640
- Sum of proper divisors (its aliquot sum) s(n): 68206920
- 28137720 is an abundant number, because the sum of its proper divisors (68206920) is greater than itself. Its abundance is 40069200
Bases of 28137720
- Binary: 11010110101011000111110002
- Hexadecimal: 0x1AD58F8
- Base-36: GR37C
Squares and roots of 28137720
- 28137720 squared (281377202) is 791731286798400
- 28137720 cubed (281377203) is 22277513263173075648000
-
The
square root of 28137720 is 5304.4999764351 -
The
cube root of 28137720 is 304.1559391557
Scales and comparisons
How big is 28137720?- 28,137,720 seconds is equal to 46 weeks, 3 days, 16 hours, 2 minutes.
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To count from 1 to 28,137,720 would take you about seventeen 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 28137720 cubic inches would be around 25.3 feet tall.
Recreational maths with 28137720
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The information we have on file for 28137720 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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