28286440
28,286,440 is an even composite number composed of six prime numbers multiplied together.
28286440 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 28286440:
23 × 5 × 7 × 13 × 19 × 409
(2 × 2 × 2 × 5 × 7 × 13 × 19 × 409)See below for interesting mathematical facts about the number 28286440 from the Numbermatics database.
Names of 28286440
- Cardinal: 28286440 can be written as Twenty-eight million, two hundred eighty-six thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.828644 × 107
Factors of 28286440
Divisors of 28286440
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 4 5 7 8 10 13 14 19 20 26 28 35 38 40 52 56 65 70 76 91 95 104 130 133 140 152 182 190 247 260 266 280 364 380 409 455 494 520 532 665 728 760 818 910 988 1064 1235 1330 1636 1729 1820 1976 2045 2470 2660 2863 3272 3458 3640 4090 4940 5317 5320 5726 6916 7771 8180 8645 9880 10634 11452 13832 14315 15542 16360 17290 21268 22904 26585 28630 31084 34580 37219 38855 42536 53170 54397 57260 62168 69160 74438 77710 101023 106340 108794 114520 148876 155420 186095 202046 212680 217588 271985 297752 310840 372190 404092 435176 505115 543970 707161 744380 808184 1010230 1087940 1414322 1488760 2020460 2175880 2828644 3535805 4040920 5657288 7071610 14143220 28286440
- Sum of all divisors σ(n): 82656000
- Sum of proper divisors (its aliquot sum) s(n): 54369560
- 28286440 is an abundant number, because the sum of its proper divisors (54369560) is greater than itself. Its abundance is 26083120
Bases of 28286440
- Binary: 11010111110011101111010002
- Hexadecimal: 0x1AF9DE8
- Base-36: GU9YG
Squares and roots of 28286440
- 28286440 squared (282864402) is 800122687873600
- 28286440 cubed (282864403) is 22632622403175313984000
-
The
square root of 28286440 is 5318.4997884741 -
The
cube root of 28286440 is 304.6908629829
Scales and comparisons
How big is 28286440?- 28,286,440 seconds is equal to 46 weeks, 5 days, 9 hours, 20 minutes, 40 seconds.
-
To count from 1 to 28,286,440 would take you about eighteen 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 28286440 cubic inches would be around 25.4 feet tall.
Recreational maths with 28286440
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The information we have on file for 28286440 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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