28689280
28,689,280 is an even composite number composed of four prime numbers multiplied together.
28689280 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 28689280:
27 × 5 × 23 × 1949
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 23 × 1949)See below for interesting mathematical facts about the number 28689280 from the Numbermatics database.
Names of 28689280
- Cardinal: 28689280 can be written as Twenty-eight million, six hundred eighty-nine thousand, two hundred eighty.
Scientific notation
- Scientific notation: 2.868928 × 107
Factors of 28689280
Divisors of 28689280
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 4 5 8 10 16 20 23 32 40 46 64 80 92 115 128 160 184 230 320 368 460 640 736 920 1472 1840 1949 2944 3680 3898 7360 7796 9745 14720 15592 19490 31184 38980 44827 62368 77960 89654 124736 155920 179308 224135 249472 311840 358616 448270 623680 717232 896540 1247360 1434464 1793080 2868928 3586160 5737856 7172320 14344640 28689280
- Sum of all divisors σ(n): 71604000
- Sum of proper divisors (its aliquot sum) s(n): 42914720
- 28689280 is an abundant number, because the sum of its proper divisors (42914720) is greater than itself. Its abundance is 14225440
Bases of 28689280
- Binary: 11011010111000011100000002
- Hexadecimal: 0x1B5C380
- Base-36: H2WSG
Squares and roots of 28689280
- 28689280 squared (286892802) is 823074786918400
- 28689280 cubed (286892803) is 23613423022842314752000
-
The
square root of 28689280 is 5356.2374853997 -
The
cube root of 28689280 is 306.1304639693
Scales and comparisons
How big is 28689280?- 28,689,280 seconds is equal to 47 weeks, 3 days, 1 hour, 14 minutes, 40 seconds.
-
To count from 1 to 28,689,280 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 28689280 cubic inches would be around 25.5 feet tall.
Recreational maths with 28689280
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The information we have on file for 28689280 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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