28189920
28,189,920 is an even composite number composed of six prime numbers multiplied together.
28189920 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 28189920:
25 × 3 × 5 × 11 × 19 × 281
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 11 × 19 × 281)See below for interesting mathematical facts about the number 28189920 from the Numbermatics database.
Names of 28189920
- Cardinal: 28189920 can be written as Twenty-eight million, one hundred eighty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.818992 × 107
Factors of 28189920
Divisors of 28189920
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 16 19 20 22 24 30 32 33 38 40 44 48 55 57 60 66 76 80 88 95 96 110 114 120 132 152 160 165 176 190 209 220 228 240 264 281 285 304 330 352 380 418 440 456 480 528 562 570 608 627 660 760 836 843 880 912 1045 1056 1124 1140 1254 1320 1405 1520 1672 1686 1760 1824 2090 2248 2280 2508 2640 2810 3040 3091 3135 3344 3372 4180 4215 4496 4560 5016 5280 5339 5620 6182 6270 6688 6744 8360 8430 8992 9120 9273 10032 10678 11240 12364 12540 13488 15455 16017 16720 16860 18546 20064 21356 22480 24728 25080 26695 26976 30910 32034 33440 33720 37092 42712 44960 46365 49456 50160 53390 58729 61820 64068 67440 74184 80085 85424 92730 98912 100320 106780 117458 123640 128136 134880 148368 160170 170848 176187 185460 213560 234916 247280 256272 293645 296736 320340 352374 370920 427120 469832 494560 512544 587290 640680 704748 741840 854240 880935 939664 1174580 1281360 1409496 1483680 1761870 1879328 2349160 2562720 2818992 3523740 4698320 5637984 7047480 9396640 14094960 28189920
- Sum of all divisors σ(n): 102332160
- Sum of proper divisors (its aliquot sum) s(n): 74142240
- 28189920 is an abundant number, because the sum of its proper divisors (74142240) is greater than itself. Its abundance is 45952320
Bases of 28189920
- Binary: 11010111000100100111000002
- Hexadecimal: 0x1AE24E0
- Base-36: GS7HC
Squares and roots of 28189920
- 28189920 squared (281899202) is 794671589606400
- 28189920 cubed (281899203) is 22401728537277247488000
-
The
square root of 28189920 is 5309.4180472063 -
The
cube root of 28189920 is 304.3439090415
Scales and comparisons
How big is 28189920?- 28,189,920 seconds is equal to 46 weeks, 4 days, 6 hours, 32 minutes.
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To count from 1 to 28,189,920 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 28189920 cubic inches would be around 25.4 feet tall.
Recreational maths with 28189920
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