28169388
28,169,388 is an even composite number composed of five prime numbers multiplied together.
28169388 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 28169388:
22 × 32 × 13 × 23 × 2617
(2 × 2 × 3 × 3 × 13 × 23 × 2617)See below for interesting mathematical facts about the number 28169388 from the Numbermatics database.
Names of 28169388
- Cardinal: 28169388 can be written as Twenty-eight million, one hundred sixty-nine thousand, three hundred eighty-eight.
Scientific notation
- Scientific notation: 2.8169388 × 107
Factors of 28169388
Divisors of 28169388
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 4 6 9 12 13 18 23 26 36 39 46 52 69 78 92 117 138 156 207 234 276 299 414 468 598 828 897 1196 1794 2617 2691 3588 5234 5382 7851 10468 10764 15702 23553 31404 34021 47106 60191 68042 94212 102063 120382 136084 180573 204126 240764 306189 361146 408252 541719 612378 722292 782483 1083438 1224756 1564966 2166876 2347449 3129932 4694898 7042347 9389796 14084694 28169388
- Sum of all divisors σ(n): 80047968
- Sum of proper divisors (its aliquot sum) s(n): 51878580
- 28169388 is an abundant number, because the sum of its proper divisors (51878580) is greater than itself. Its abundance is 23709192
Bases of 28169388
- Binary: 11010110111010100101011002
- Hexadecimal: 0x1ADD4AC
- Base-36: GRRN0
Squares and roots of 28169388
- 28169388 squared (281693882) is 793514420294544
- 28169388 cubed (281693883) is 22352815588872084219072
-
The
square root of 28169388 is 5307.4841497643 -
The
cube root of 28169388 is 304.2700019281
Scales and comparisons
How big is 28169388?- 28,169,388 seconds is equal to 46 weeks, 4 days, 49 minutes, 48 seconds.
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To count from 1 to 28,169,388 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 28169388 cubic inches would be around 25.4 feet tall.
Recreational maths with 28169388
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The information we have on file for 28169388 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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