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12

Number 12 (twelve) is an even two-digits composite number and natural number following 11 and preceding 13.

Properties of the number 12

Nominal12
Cardinaltwelve
Ordinal12th
Number of digits2
Sum of digits3
Product of digits2
Number parityEven
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Prime Factorization of 12

Prime factorization2 x 2 x 3
Prime factorization in exponent form22 x 3
Prime factors2, 3
Number of distinct prime factors ω(n)2
Total number of prime factors Ω(n)3
Sum of prime factors5
Product of prime factors6
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Divisors of 12

List of proper divisors 1, 2, 3, 4, 6
List of all dividers1, 2, 3, 4, 6, 12
Number of divisors d(n)6
Sum of all divisors σ(n)28
Aliquot sum 16
12 is an abundant number , because the sum of its proper divisors (16) is greater than itself. Its abundance is 4.
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Prime numbers

Is 12 a prime number?No
Is 12 a semiprime number?No
Is 12 a Chen prime number?No
Is 12 a Mersenne prime number?No
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Sequences

Is 12 a Catalan number?No
Is 12 a Fibonacci number?No
Is 12 a Idoneal number?Yes: I10
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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.
12 is not a Happy number
12 is a Humble number
12 is not a Münchhausen number
12 is not a Perfect number
12 is not a Perfect square
12 is not a Palindrome
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Numeric Bases of 12

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
2Binary11002
3Ternary1103
4Quaternary304
5Quinary225
6Senary206
7Septenary157
8Octal148
9Nonary139
10Decimal12
12Duodecimal1012
16Hexadecimalc16
20Vigesimalc20
36Base36c36
60SexagesimalC60
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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 12 (n2)144
Cube of 12 (n3)1728
Square root of 123.4641016151378
Natural Logarithm (ln) of 122.484906649788
Decimal Logarithm (log) of 121.0791812460476
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Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
Sine of 12-0.53657291800043
Cosecant of 12-1.8636795977824
Cosine of 120.84385395873249
Secant of 121.185039176094
Tangent of 12-0.63585992866158
Cotangent of 12-1.5726734063977
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Number parity

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

Is 12 an Even Number?

Yes, the number 12 is an even number.

Is 12 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 12 in words is "twelve", meaning that:
12 is an aban number (a number without the letter a)
12 is not an eban number (as it contains the letter e)
12 is an iban number (a number without the letter i)
12 is an oban number (a number without the letter o)
12 is not a tban number (as it contains the letter t)
12 is an uban number (a number without the letter u)
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Numeral systems

How to write 12 in other number systems?
Bengali numerals১২
Eastern Arabic numerals١٢
Hieroglyphs numeralsused in Ancient Egypt𓎆𓏻
Khmer numerals១២
Japanese numerals十二
Roman numeralsXII
Thai numerals๑๒
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Translation

How do you say 12 in 38 different languages?
Arabicإثنا عشر
Croatiandvanaest
Czechdvanáct
Danish tolv
Dutchtwaalf
Estonianwuieve
Faroesetólv
Filipinolabíng-dalawá
Finnishkaksitoista
Frenchdouze
Greekδώδεκα
Germanzwölf
Hebrewשתים עשרה
Hindiबारह
Hungariantizen­kettő
Icelandictólf
Indonesiandua belas
Italiandodici
Japanese十二
Korean십이
Latviandivpadsmit
Lithuaniandvylika
Norwegiantolv
Persianدوازده
Polishdwanaście
Portuguesedoze
Romaniandoisprezece
Russianдвенадцать
Serbianдванаест
Slovakdvanásť
Slovenedvanajst
Spanish doce
Swahilikumi na mbili
Swedishtolv
Thaiสิบ​สอง
Turkishon iki
Ukrainianдванадцять
Vietnamesemười hai
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Miscellaneous

Number 12 reversed21
ASCII Code12
Unicode CharacterU+000C
Unix TimestampThu, 01 Jan 1970 00:00:12 +0000
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