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# 22

Number 22 (twenty-two) is an even two-digits composite number and natural number following 21 and preceding 23.

## Properties of the number 22

 Nominal 22 Cardinal twenty-two Ordinal 22nd Number of digits 2 Sum of digits 4 Product of digits 4 Number parity Even
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## Prime Factorization of 22

 Prime factorization 2 x 11 Prime factors 2, 11 Number of distinct prime factors ω(n) 2 Total number of prime factors Ω(n) 2 Sum of prime factors 13 Product of prime factors 22
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## Divisors of 22

 List of proper divisors 1, 2, 11 List of all dividers 1, 2, 11, 22 Number of divisors d(n) 4 Sum of all divisors σ(n) 36 Aliquot sum 14 22 is a deficient number , since it is larger than the sum of its proper divisors (14). Its deficiency is 8.
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## Prime numbers

 Is 22 a prime number? No Is 22 a semiprime number? Yes Is 22 a Chen prime number? No Is 22 a Mersenne prime number? No
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## Sequences

 Is 22 a Catalan number? No Is 22 a Fibonacci number? No Is 22 a Idoneal number? Yes: I16
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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.
 22 is not a Happy number 22 is not a Humble number 22 is not a Münchhausen number 22 is not a Perfect number 22 is not a Perfect square 22 is a Palindrome
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## Numeric Bases of 22

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
2Binary101102
3Ternary2113
4Quaternary1124
5Quinary425
6Senary346
7Septenary317
8Octal268
9Nonary249
10Decimal22
12Duodecimal1a12
20Vigesimal1220
36Base36m36
60SexagesimalM60
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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 22 (n2) 484 Cube of 22 (n3) 10648 Square root of 22 4.69042 Natural Logarithm (ln) of 22 3.09104 Decimal Logarithm (log) of 22 1.34242
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## Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
 Sine of 22 -0.00885131 Cosecant of 22 -112.978 Cosine of 22 -0.999961 Secant of 22 -1.00004 Tangent of 22 0.00885166 Cotangent of 22 112.973
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## Number parity

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

### Is 22 an Even Number?

Yes, the number 22 is an even number.

### Is 22 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 22 in words is "twenty-two", meaning that: 22 is an aban number (a number without the letter a) 22 is not an eban number (as it contains the letter e) 22 is an iban number (a number without the letter i) 22 is not an oban number (as it contains the letter o) 22 is not a tban number (as it contains the letter t) 22 is an uban number (a number without the letter u)
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## Numeral systems

How to write 22 in other number systems?
 Bengali numerals ২২ Eastern Arabic numerals ٢٢ Hieroglyphs numeralsused in Ancient Egypt 𓎇𓏻 Khmer numerals ២២ Japanese numerals 二十二 Roman numerals XXII Thai numerals ๒๒
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## Translation

How do you say 22 in 38 different languages?
 Arabic إثنان و عشرون Croatian dvadeset i dva Czech dvacet dva Danish to og tyve Dutch tweeentwintig Estonian blaeve vɔ eve Faroese tjúgo­tveir Filipino dalawáng pû’t dalawá Finnish kaksi­kymmentä­kaksi French vingt-deux Greek είκοσι δύο German zwei­und­zwanzig Hebrew עשרים ושתיים Hindi बाईस Hungarian huszon­kettő Icelandic tuttugu og tveir Indonesian dua puluh dua Italian ventidue Japanese 二十二 Korean 이십이 Latvian divdesmit divi Lithuanian dvidešimt du Norwegian tjue­to Persian بیست و دو Polish dwadzieścia dwa Portuguese vinte e dois Romanian douăzeci şi doi Russian двадцать два Serbian двадесет и два Slovak dvadsať­dva Slovene dvaset dva Spanish veintidos Swahili ishirini na mbili Swedish tjugotvå Thai ยี่​สิบ​สอง Turkish yirmi iki Ukrainian двадцять два Vietnamese hai mươi hai
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## Miscellaneous

 Number 22 reversed 22 ASCII Code 22  Unicode Character U+0016  Unix Timestamp Thu, 01 Jan 1970 00:00:22 +0000
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