28408920
28,408,920 is an even composite number composed of five prime numbers multiplied together.
28408920 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 28408920:
23 × 3 × 5 × 61 × 3881
(2 × 2 × 2 × 3 × 5 × 61 × 3881)See below for interesting mathematical facts about the number 28408920 from the Numbermatics database.
Names of 28408920
- Cardinal: 28408920 can be written as Twenty-eight million, four hundred eight thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.840892 × 107
Factors of 28408920
Divisors of 28408920
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 61 120 122 183 244 305 366 488 610 732 915 1220 1464 1830 2440 3660 3881 7320 7762 11643 15524 19405 23286 31048 38810 46572 58215 77620 93144 116430 155240 232860 236741 465720 473482 710223 946964 1183705 1420446 1893928 2367410 2840892 3551115 4734820 5681784 7102230 9469640 14204460 28408920
- Sum of all divisors σ(n): 86646240
- Sum of proper divisors (its aliquot sum) s(n): 58237320
- 28408920 is an abundant number, because the sum of its proper divisors (58237320) is greater than itself. Its abundance is 29828400
Bases of 28408920
- Binary: 11011000101111100010110002
- Hexadecimal: 0x1B17C58
- Base-36: GWWGO
Squares and roots of 28408920
- 28408920 squared (284089202) is 807066735566400
- 28408920 cubed (284089203) is 22927894325367012288000
-
The
square root of 28408920 is 5330.0018761723 -
The
cube root of 28408920 is 305.1299992279
Scales and comparisons
How big is 28408920?- 28,408,920 seconds is equal to 46 weeks, 6 days, 19 hours, 22 minutes.
-
To count from 1 to 28,408,920 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 28408920 cubic inches would be around 25.4 feet tall.
Recreational maths with 28408920
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The information we have on file for 28408920 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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