221019890
221,019,890 is an even composite number composed of six prime numbers multiplied together.
221019890 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 221019890:
2 × 5 × 72 × 132 × 17 × 157
(2 × 5 × 7 × 7 × 13 × 13 × 17 × 157)See below for interesting mathematical facts about the number 221019890 from the Numbermatics database.
Names of 221019890
- Cardinal: 221019890 can be written as Two hundred twenty-one million, nineteen thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 2.2101989 × 108
Factors of 221019890
Divisors of 221019890
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 5 7 10 13 14 17 26 34 35 49 65 70 85 91 98 119 130 157 169 170 182 221 238 245 314 338 442 455 490 595 637 785 833 845 910 1099 1105 1183 1190 1274 1547 1570 1666 1690 2041 2198 2210 2366 2669 2873 3094 3185 4082 4165 5338 5495 5746 5915 6370 7693 7735 8281 8330 10205 10829 10990 11830 13345 14287 14365 15386 15470 16562 18683 20111 20410 21658 26533 26690 28574 28730 34697 37366 38465 40222 41405 53066 54145 69394 71435 76930 82810 93415 100009 100555 108290 130781 132665 140777 142870 173485 185731 186830 200018 201110 242879 261562 265330 281554 346970 371462 451061 485758 500045 653905 703885 902122 928655 1000090 1214395 1300117 1307810 1407770 1700153 1857310 2255305 2428790 2600234 3157427 3400306 4510610 6314854 6500585 8500765 13001170 15787135 17001530 22101989 31574270 44203978 110509945 221019890
- Sum of all divisors σ(n): 533983752
- Sum of proper divisors (its aliquot sum) s(n): 312963862
- 221019890 is an abundant number, because the sum of its proper divisors (312963862) is greater than itself. Its abundance is 91943972
Bases of 221019890
- Binary: 11010010110001111110111100102
- Hexadecimal: 0xD2C7EF2
- Base-36: 3NL81E
Squares and roots of 221019890
- 221019890 squared (2210198902) is 48849791775612100
- 221019890 cubed (2210198903) is 10796775604768691024669000
-
The
square root of 221019890 is 14866.7377053609 -
The
cube root of 221019890 is 604.6124968879
Scales and comparisons
How big is 221019890?- 221,019,890 seconds is equal to 7 years, 1 week, 3 days, 2 hours, 24 minutes, 50 seconds.
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To count from 1 to 221,019,890 would take you about ten years!
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 221019890 cubic inches would be around 50.4 feet tall.
Recreational maths with 221019890
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