28221440
28,221,440 is an even composite number composed of four prime numbers multiplied together.
28221440 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twelve divisors.
Prime factorization of 28221440:
213 × 5 × 13 × 53
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 13 × 53)See below for interesting mathematical facts about the number 28221440 from the Numbermatics database.
Names of 28221440
- Cardinal: 28221440 can be written as Twenty-eight million, two hundred twenty-one thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.822144 × 107
Factors of 28221440
Divisors of 28221440
- Number of divisors d(n): 112
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Complete list of divisors:
1 2 4 5 8 10 13 16 20 26 32 40 52 53 64 65 80 104 106 128 130 160 208 212 256 260 265 320 416 424 512 520 530 640 689 832 848 1024 1040 1060 1280 1378 1664 1696 2048 2080 2120 2560 2756 3328 3392 3445 4096 4160 4240 5120 5512 6656 6784 6890 8192 8320 8480 10240 11024 13312 13568 13780 16640 16960 20480 22048 26624 27136 27560 33280 33920 40960 44096 53248 54272 55120 66560 67840 88192 106496 108544 110240 133120 135680 176384 217088 220480 266240 271360 352768 434176 440960 532480 542720 705536 881920 1085440 1411072 1763840 2170880 2822144 3527680 5644288 7055360 14110720 28221440
- Sum of all divisors σ(n): 74313288
- Sum of proper divisors (its aliquot sum) s(n): 46091848
- 28221440 is an abundant number, because the sum of its proper divisors (46091848) is greater than itself. Its abundance is 17870408
Bases of 28221440
- Binary: 11010111010100000000000002
- Hexadecimal: 0x1AEA000
- Base-36: GSVSW
Squares and roots of 28221440
- 28221440 squared (282214402) is 796449675673600
- 28221440 cubed (282214403) is 22476956735041961984000
-
The
square root of 28221440 is 5312.3855281785 -
The
cube root of 28221440 is 304.4572988259
Scales and comparisons
How big is 28221440?- 28,221,440 seconds is equal to 46 weeks, 4 days, 15 hours, 17 minutes, 20 seconds.
-
To count from 1 to 28,221,440 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 28221440 cubic inches would be around 25.4 feet tall.
Recreational maths with 28221440
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The information we have on file for 28221440 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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