We use cookies and other tracking technologies to improve your browsing experience on our website, to show you personalized content and targeted ads, to analyze our website traffic, and to understand where our visitors are coming from. For more information, please review our cookie policy and privacy policy.
By choosing I Accept, you consent to our use of cookies and other tracking technologies.


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

Cardinaltwo hundred eighteen
two hundred eighteen
Number of digits3
Sum of digits11
Product of digits16
Number parityEven
Calculation was done in 0.0000491142 seconds

Prime Factorization of 218

Prime factorization2 x 109
Prime factors2, 109
Number of distinct prime factors ω(n)2
Total number of prime factors Ω(n)2
Sum of prime factors111
Product of prime factors218
Calculation was done in 0.0000240803 seconds

Divisors of 218

List of proper divisors 1, 2, 109
List of all dividers1, 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.
Calculation was done in 0.0000190735 seconds

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
Calculation was done in 0.0000400543 seconds


Is 218 a Catalan number?No
Is 218 a Fibonacci number?No
Is 218 a Idoneal number?No
Calculation was done in 0.0000069141 seconds

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
Calculation was done in 0.0103120804 seconds

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.
Calculation was done in 0.0000259876 seconds

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)10360232
Square root of 21814.764823060233
Natural Logarithm (ln) of 2185.3844950627891
Decimal Logarithm (log) of 2182.3384564936046
Calculation was done in 0.0000069141 seconds


Trigonometry is the study of the relationship between the angles and sides of a triangle.
Sine of 218-0.9425245273294
Cosecant of 218-1.0609803469343
Cosine of 218-0.33413697099017
Secant of 218-2.9927846566533
Tangent of 2182.8207729439109
Cotangent of 2180.35451275940471
Calculation was done in 0.0000159740 seconds

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?

Calculation was done in 0.0000061989 seconds

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)
Calculation was done in 0.0000028610 seconds

Numeral systems

How to write 218 in other number systems?
Bengali numerals২১৮
Eastern Arabic numerals٢١٨
Hieroglyphs numeralsused in Ancient Egypt𓍣𓎆𓐁
Khmer numerals២១៨
Japanese numerals二百十八
Roman numeralsCCXVIII
Thai numerals๒๑๘
Calculation was done in 0.0001049042 seconds


How do you say 218 in 38 different languages?
Arabicمائتان و ثمانية عشر
Croatiandvjesto osamnaest
Czechdvě stě osmnáct
Danish to hundrede atten
Estonianalafa eve kple wuienyi
Filipinodalawáng daán at labíng-waló
Frenchdeux cent dix-huit
Greekδιακόσια δεκα­οκτώ
Hebrewמאתיים ושמונה עשרה
Hindiदो सौ अठारह
Icelandictvö­hundrað og átján
Indonesiandua ratus delapan belas
Latviandivsimt astoņpadsmit
Lithuaniandu šimtai aštuoniolika
Norwegianto hundre og atten
Persianدویست و هجده
Polishdwieście osiemnaście
Portugueseduzentos e dezoito
Romaniandouă sute optsprezece
Russianдвести восемнадцать
Serbianдвеста осамнаест
Slovakdve­sto osemnásť
Slovenedvjesto asemnajst
Spanish doscientos dieciocho
Swahilimia mbili na kumi na nane
Turkishiki yüz on sekiz
Ukrainianдвісті вісімнадцять
Vietnamesehai trăm mười tám
Calculation was done in 0.0201201439 seconds


Number 218 reversed812
ASCII Code218Ú
Unicode CharacterU+00DAÚ
Hexadecimal color (shorthand)#221188
Unix TimestampThu, 01 Jan 1970 00:03:38 +0000
Calculation was done in 0.0000360012 seconds
This page was generated in 0.03 seconds.