28012725
28,012,725 is an odd composite number composed of five prime numbers multiplied together.
What does the number 28012725 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 72 divisors.
28012725 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 28012725:
32 × 52 × 13 × 61 × 157
(3 × 3 × 5 × 5 × 13 × 61 × 157)See below for interesting mathematical facts about the number 28012725 from the Numbermatics database.
Names of 28012725
- Cardinal: 28012725 can be written as Twenty-eight million, twelve thousand, seven hundred twenty-five.
Scientific notation
- Scientific notation: 2.8012725 × 107
Factors of 28012725
Divisors of 28012725
- Number of divisors d(n): 72
-
Complete list of divisors:
1 3 5 9 13 15 25 39 45 61 65 75 117 157 183 195 225 305 325 471 549 585 785 793 915 975 1413 1525 2041 2355 2379 2745 2925 3925 3965 4575 6123 7065 7137 9577 10205 11775 11895 13725 18369 19825 28731 30615 35325 35685 47885 51025 59475 86193 91845 124501 143655 153075 178425 239425 373503 430965 459225 622505 718275 1120509 1867515 2154825 3112525 5602545 9337575 28012725
- Sum of all divisors σ(n): 55269032
- Sum of proper divisors (its aliquot sum) s(n): 27256307
- 28012725 is a deficient number, because the sum of its proper divisors (27256307) is less than itself. Its deficiency is 756418
Bases of 28012725
- Binary: 11010101101110000101101012
- Hexadecimal: 0x1AB70B5
- Base-36: GOER9
Squares and roots of 28012725
- 28012725 squared (280127252) is 784712761925625
- 28012725 cubed (280127253) is 21981942803813003578125
-
The
square root of 28012725 is 5292.7048850279 -
The
cube root of 28012725 is 303.7048909285
Scales and comparisons
How big is 28012725?- 28,012,725 seconds is equal to 46 weeks, 2 days, 5 hours, 18 minutes, 45 seconds.
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To count from 1 to 28,012,725 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 28012725 cubic inches would be around 25.3 feet tall.
Recreational maths with 28012725
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The information we have on file for 28012725 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!
Keywords: Divisors of 28012725, math, Factors of 28012725, curriculum, school, college, exams, university, Prime factorization of 28012725, STEM, science, technology, engineering, physics, economics, calculator, twenty-eight million, twelve thousand, seven hundred twenty-five.