28728072
28,728,072 is an even composite number composed of five prime numbers multiplied together.
28728072 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 28728072:
23 × 32 × 31 × 61 × 211
(2 × 2 × 2 × 3 × 3 × 31 × 61 × 211)See below for interesting mathematical facts about the number 28728072 from the Numbermatics database.
Names of 28728072
- Cardinal: 28728072 can be written as Twenty-eight million, seven hundred twenty-eight thousand and seventy-two.
Scientific notation
- Scientific notation: 2.8728072 × 107
Factors of 28728072
Divisors of 28728072
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 8 9 12 18 24 31 36 61 62 72 93 122 124 183 186 211 244 248 279 366 372 422 488 549 558 633 732 744 844 1098 1116 1266 1464 1688 1891 1899 2196 2232 2532 3782 3798 4392 5064 5673 6541 7564 7596 11346 12871 13082 15128 15192 17019 19623 22692 25742 26164 34038 38613 39246 45384 51484 52328 58869 68076 77226 78492 102968 115839 117738 136152 154452 156984 231678 235476 308904 399001 463356 470952 798002 926712 1197003 1596004 2394006 3192008 3591009 4788012 7182018 9576024 14364036 28728072
- Sum of all divisors σ(n): 82018560
- Sum of proper divisors (its aliquot sum) s(n): 53290488
- 28728072 is an abundant number, because the sum of its proper divisors (53290488) is greater than itself. Its abundance is 24562416
Bases of 28728072
- Binary: 11011011001011011000010002
- Hexadecimal: 0x1B65B08
- Base-36: H3QQ0
Squares and roots of 28728072
- 28728072 squared (287280722) is 825302120837184
- 28728072 cubed (287280723) is 23709338749163322229248
-
The
square root of 28728072 is 5359.8574607913 -
The
cube root of 28728072 is 306.2683791829
Scales and comparisons
How big is 28728072?- 28,728,072 seconds is equal to 47 weeks, 3 days, 12 hours, 1 minute, 12 seconds.
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To count from 1 to 28,728,072 would take you about nineteen 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 28728072 cubic inches would be around 25.5 feet tall.
Recreational maths with 28728072
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The information we have on file for 28728072 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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