28420872
28,420,872 is an even composite number composed of five prime numbers multiplied together.
28420872 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 28420872:
23 × 3 × 17 × 41 × 1699
(2 × 2 × 2 × 3 × 17 × 41 × 1699)See below for interesting mathematical facts about the number 28420872 from the Numbermatics database.
Names of 28420872
- Cardinal: 28420872 can be written as Twenty-eight million, four hundred twenty thousand, eight hundred seventy-two.
Scientific notation
- Scientific notation: 2.8420872 × 107
Factors of 28420872
Divisors of 28420872
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 4 6 8 12 17 24 34 41 51 68 82 102 123 136 164 204 246 328 408 492 697 984 1394 1699 2091 2788 3398 4182 5097 5576 6796 8364 10194 13592 16728 20388 28883 40776 57766 69659 86649 115532 139318 173298 208977 231064 278636 346596 417954 557272 693192 835908 1184203 1671816 2368406 3552609 4736812 7105218 9473624 14210436 28420872
- Sum of all divisors σ(n): 77112000
- Sum of proper divisors (its aliquot sum) s(n): 48691128
- 28420872 is an abundant number, because the sum of its proper divisors (48691128) is greater than itself. Its abundance is 20270256
Bases of 28420872
- Binary: 11011000110101011000010002
- Hexadecimal: 0x1B1AB08
- Base-36: GX5OO
Squares and roots of 28420872
- 28420872 squared (284208722) is 807745965240384
- 28420872 cubed (284208723) is 22956844686613402894848
-
The
square root of 28420872 is 5331.1229586271 -
The
cube root of 28420872 is 305.1727839403
Scales and comparisons
How big is 28420872?- 28,420,872 seconds is equal to 46 weeks, 6 days, 22 hours, 41 minutes, 12 seconds.
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To count from 1 to 28,420,872 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 28420872 cubic inches would be around 25.4 feet tall.
Recreational maths with 28420872
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The information we have on file for 28420872 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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