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# 218

Number 218 (two hundred eighteen) is an even three-digits composite number and natural number following 217 and preceding 219.

## Properties of the number 218

 Nominal 218 Cardinal two hundred eighteen Cardinaltwo hundred eighteen Ordinal 218th Number of digits 3 Sum of digits 11 Product of digits 16 Number parity Even
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## Prime Factorization of 218

 Prime factorization 2 x 109 Prime factors 2, 109 Number of distinct prime factors ω(n) 2 Total number of prime factors Ω(n) 2 Sum of prime factors 111 Product of prime factors 218
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## Divisors of 218

 List of proper divisors 1, 2, 109 List of all dividers 1, 2, 109, 218 Number of divisors d(n) 4 Sum of all divisors σ(n) 330 Aliquot sum 112 218 is a deficient number , since it is larger than the sum of its proper divisors (112). Its deficiency is 106.
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## Prime numbers

 Is 218 a prime number? No Is 218 a semiprime number? Yes Is 218 a Chen prime number? No Is 218 a Mersenne prime number? No
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## Sequences

 Is 218 a Catalan number? No Is 218 a Fibonacci number? No Is 218 a Idoneal number? No
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## Number theory

Number theory is a branch of pure mathematics devoted primarily to the study of the integers and integer-valued functions.
 218 is not a Happy number 218 is not a Humble number 218 is not a Münchhausen number 218 is not a Perfect number 218 is not a Perfect square 218 is not a Palindrome
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## Numeric Bases of 218

In mathematics, a base or radix of a numeral system is the number of unique digits, including zero, used to represent numbers in that system.
BaseSystemValue
2Binary110110102
3Ternary220023
4Quaternary31224
5Quinary13335
6Senary10026
7Septenary4317
8Octal3328
9Nonary2629
10Decimal218
12Duodecimal16212
20Vigesimalai20
36Base366236
60Sexagesimal3c60
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## Mathematical operations

Mathematical operations are actions that are performed on numbers or mathematical expressions to find a numerical result.
 Square of 218 (n2) 47524 Cube of 218 (n3) 1.03602e+07 Square root of 218 14.7648 Natural Logarithm (ln) of 218 5.3845 Decimal Logarithm (log) of 218 2.33846
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## Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
 Sine of 218 -0.942525 Cosecant of 218 -1.06098 Cosine of 218 -0.334137 Secant of 218 -2.99278 Tangent of 218 2.82077 Cotangent of 218 0.354513
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## Number parity

Parity is the property of an integer of whether it is even or odd.

### Is 218 an Even Number?

Yes, the number 218 is an even number.

### Is 218 an Odd Number?

No
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## Ban number

In recreational mathematics, a ban number is a number that does not contain a particular letter when spelled out in English; in other words, the letter is "banned".
 The spelling of 218 in words is "two hundred eighteen", meaning that: 218 is an aban number (a number without the letter a) 218 is not an eban number (as it contains the letter e) 218 is not an iban number (as it contains the letter i) 218 is not an oban number (as it contains the letter o) 218 is not a tban number (as it contains the letter t) 218 is not an uban number (as it contains the letter u)
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## Numeral systems

How to write 218 in other number systems?
 Bengali numerals ২১৮ Eastern Arabic numerals ٢١٨ Hieroglyphs numeralsused in Ancient Egypt 𓍣𓎆𓐁 Khmer numerals ២១៨ Japanese numerals 二百十八 Roman numerals CCXVIII Thai numerals ๒๑๘
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## Translation

How do you say 218 in 38 different languages?
 Arabic مائتان و ثمانية عشر Croatian dvjesto osamnaest Czech dvě stě osmnáct Danish to hundrede atten Dutch tweehonderdachttien Estonian alafa eve kple wuienyi Faroese tvey­hundrað­og­átjan Filipino dalawáng daán at labíng-waló Finnish kaksi­sataa­kahdeksantoista French deux cent dix-huit Greek διακόσια δεκα­οκτώ German zwei­hundert­achtzehn Hebrew מאתיים ושמונה עשרה Hindi दो सौ अठारह Hungarian két­száz­tizen­nyolc Icelandic tvö­hundrað og átján Indonesian dua ratus delapan belas Italian duecentodiciotto Japanese 二百十八 Korean 이백십팔 Latvian divsimt astoņpadsmit Lithuanian du šimtai aštuoniolika Norwegian to hundre og atten Persian دویست و هجده Polish dwieście osiemnaście Portuguese duzentos e dezoito Romanian două sute optsprezece Russian двести восемнадцать Serbian двеста осамнаест Slovak dve­sto osemnásť Slovene dvjesto asemnajst Spanish doscientos dieciocho Swahili mia mbili na kumi na nane Swedish tvåhundraarton Thai สอง​ร้อย​สิบ​แปด Turkish iki yüz on sekiz Ukrainian двісті вісімнадцять Vietnamese hai trăm mười tám
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## Miscellaneous

 Number 218 reversed 812 ASCII Code 218 Ú Unicode Character U+00DA Ú Hexadecimal color (shorthand) #221188 Unix Timestamp Thu, 01 Jan 1970 00:03:38 +0000
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