28385240
28,385,240 is an even composite number composed of five prime numbers multiplied together.
28385240 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 28385240:
23 × 5 × 133 × 17 × 19
(2 × 2 × 2 × 5 × 13 × 13 × 13 × 17 × 19)See below for interesting mathematical facts about the number 28385240 from the Numbermatics database.
Names of 28385240
- Cardinal: 28385240 can be written as Twenty-eight million, three hundred eighty-five thousand, two hundred forty.
Scientific notation
- Scientific notation: 2.838524 × 107
Factors of 28385240
Divisors of 28385240
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 4 5 8 10 13 17 19 20 26 34 38 40 52 65 68 76 85 95 104 130 136 152 169 170 190 221 247 260 323 338 340 380 442 494 520 646 676 680 760 845 884 988 1105 1235 1292 1352 1615 1690 1768 1976 2197 2210 2470 2584 2873 3211 3230 3380 4199 4394 4420 4940 5746 6422 6460 6760 8398 8788 8840 9880 10985 11492 12844 12920 14365 16055 16796 17576 20995 21970 22984 25688 28730 32110 33592 37349 41743 41990 43940 54587 57460 64220 74698 83486 83980 87880 109174 114920 128440 149396 166972 167960 186745 208715 218348 272935 298792 333944 373490 417430 436696 545870 709631 746980 834860 1091740 1419262 1493960 1669720 2183480 2838524 3548155 5677048 7096310 14192620 28385240
- Sum of all divisors σ(n): 77112000
- Sum of proper divisors (its aliquot sum) s(n): 48726760
- 28385240 is an abundant number, because the sum of its proper divisors (48726760) is greater than itself. Its abundance is 20341520
Bases of 28385240
- Binary: 11011000100011111110110002
- Hexadecimal: 0x1B11FD8
- Base-36: GWE6W
Squares and roots of 28385240
- 28385240 squared (283852402) is 805721849857600
- 28385240 cubed (283852403) is 22870608081451941824000
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The
square root of 28385240 is 5327.7800254891 -
The
cube root of 28385240 is 305.0451962047
Scales and comparisons
How big is 28385240?- 28,385,240 seconds is equal to 46 weeks, 6 days, 12 hours, 47 minutes, 20 seconds.
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To count from 1 to 28,385,240 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 28385240 cubic inches would be around 25.4 feet tall.
Recreational maths with 28385240
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"Number 28385240 - Facts about the integer". Numbermatics.com. 2024. Web. 6 May 2024.
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The information we have on file for 28385240 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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