28400940
28,400,940 is an even composite number composed of five prime numbers multiplied together.
28400940 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 28400940:
22 × 32 × 5 × 83 × 1901
(2 × 2 × 3 × 3 × 5 × 83 × 1901)See below for interesting mathematical facts about the number 28400940 from the Numbermatics database.
Names of 28400940
- Cardinal: 28400940 can be written as Twenty-eight million, four hundred thousand, nine hundred forty.
Scientific notation
- Scientific notation: 2.840094 × 107
Factors of 28400940
Divisors of 28400940
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 83 90 166 180 249 332 415 498 747 830 996 1245 1494 1660 1901 2490 2988 3735 3802 4980 5703 7470 7604 9505 11406 14940 17109 19010 22812 28515 34218 38020 57030 68436 85545 114060 157783 171090 315566 342180 473349 631132 788915 946698 1420047 1577830 1893396 2366745 2840094 3155660 4733490 5680188 7100235 9466980 14200470 28400940
- Sum of all divisors σ(n): 87233328
- Sum of proper divisors (its aliquot sum) s(n): 58832388
- 28400940 is an abundant number, because the sum of its proper divisors (58832388) is greater than itself. Its abundance is 30431448
Bases of 28400940
- Binary: 11011000101011101001011002
- Hexadecimal: 0x1B15D2C
- Base-36: GWQB0
Squares and roots of 28400940
- 28400940 squared (284009402) is 806613392883600
- 28400940 cubed (284009403) is 22908578574483550584000
-
The
square root of 28400940 is 5329.2532309883 -
The
cube root of 28400940 is 305.1014264483
Scales and comparisons
How big is 28400940?- 28,400,940 seconds is equal to 46 weeks, 6 days, 17 hours, 9 minutes.
-
To count from 1 to 28,400,940 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 28400940 cubic inches would be around 25.4 feet tall.
Recreational maths with 28400940
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The information we have on file for 28400940 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 28400940, math, Factors of 28400940, curriculum, school, college, exams, university, Prime factorization of 28400940, STEM, science, technology, engineering, physics, economics, calculator, twenty-eight million, four hundred thousand, nine hundred forty.