221395230
221,395,230 is an even composite number composed of six prime numbers multiplied together.
221395230 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 221395230:
2 × 32 × 5 × 72 × 61 × 823
(2 × 3 × 3 × 5 × 7 × 7 × 61 × 823)See below for interesting mathematical facts about the number 221395230 from the Numbermatics database.
Names of 221395230
- Cardinal: 221395230 can be written as Two hundred twenty-one million, three hundred ninety-five thousand, two hundred thirty.
Scientific notation
- Scientific notation: 2.2139523 × 108
Factors of 221395230
Divisors of 221395230
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 49 61 63 70 90 98 105 122 126 147 183 210 245 294 305 315 366 427 441 490 549 610 630 735 823 854 882 915 1098 1281 1470 1646 1830 2135 2205 2469 2562 2745 2989 3843 4115 4270 4410 4938 5490 5761 5978 6405 7407 7686 8230 8967 11522 12345 12810 14814 14945 17283 17934 19215 24690 26901 28805 29890 34566 37035 38430 40327 44835 50203 51849 53802 57610 74070 80654 86415 89670 100406 103698 120981 134505 150609 172830 201635 241962 251015 259245 269010 301218 351421 362943 403270 451827 502030 518490 604905 702842 725886 753045 903654 1054263 1209810 1506090 1757105 1814715 2108526 2259135 2459947 3162789 3514210 3629430 4518270 4919894 5271315 6325578 7379841 10542630 12299735 14759682 15813945 22139523 24599470 31627890 36899205 44279046 73798410 110697615 221395230
- Sum of all divisors σ(n): 681411744
- Sum of proper divisors (its aliquot sum) s(n): 460016514
- 221395230 is an abundant number, because the sum of its proper divisors (460016514) is greater than itself. Its abundance is 238621284
Bases of 221395230
- Binary: 11010011001000111001000111102
- Hexadecimal: 0xD32391E
- Base-36: 3NT9NI
Squares and roots of 221395230
- 221395230 squared (2213952302) is 49015847866752900
- 221395230 cubed (2213952303) is 10851874912104767648667000
-
The
square root of 221395230 is 14879.3558328309 -
The
cube root of 221395230 is 604.9545579785
Scales and comparisons
How big is 221395230?- 221,395,230 seconds is equal to 7 years, 2 weeks, 10 hours, 40 minutes, 30 seconds.
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To count from 1 to 221,395,230 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 221395230 cubic inches would be around 50.4 feet tall.
Recreational maths with 221395230
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