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3

Number 3 (three) is an odd digit prime number and natural number following 2 and preceding 4.

Properties of the number 3

Nominal3
Cardinalthree
Ordinal3rd
Number of digits1
Sum of digits3
Product of digits3
Number parityOdd
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Prime Factorization of 3

Prime factorization3
Prime factors3
Number of distinct prime factors ω(n)1
Total number of prime factors Ω(n)1
Sum of prime factors3
Product of prime factors3
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Divisors of 3

List of proper divisors 1
List of all dividers1, 3
Number of divisors d(n)2
Sum of all divisors σ(n)4
Aliquot sum 1
3 is a deficient number , since it is larger than the sum of its proper divisors (1). Its deficiency is 2.
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Prime numbers

Is 3 a prime number?Yes
Is 3 a semiprime number?No
Is 3 a Chen prime number?Yes
Is 3 a Mersenne prime number?Yes: M1
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Sequences

Is 3 a Catalan number?No
Is 3 a Fibonacci number?Yes
Is 3 a Idoneal number?Yes: I2
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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.
3 is not a Happy number
3 is a Humble number
3 is not a Münchhausen number
3 is not a Perfect number
3 is not a Perfect square
3 is a Palindrome
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Numeric Bases of 3

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
2Binary112
3Ternary103
4Quaternary34
5Quinary35
6Senary36
7Septenary37
8Octal38
9Nonary39
10Decimal3
12Duodecimal312
16Hexadecimal316
20Vigesimal320
36Base36336
60Sexagesimal360
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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 3 (n2)9
Cube of 3 (n3)27
Square root of 31.7320508075689
Natural Logarithm (ln) of 31.0986122886681
Decimal Logarithm (log) of 30.47712125471966
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Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
Sine of 30.14112000805987
Cosecant of 37.0861673957372
Cosine of 3-0.98999249660045
Secant of 3-1.010108665908
Tangent of 3-0.14254654307428
Cotangent of 3-7.0152525514345
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Number parity

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

Is 3 an Even Number?

No

Is 3 an Odd Number?

Yes, the number 3 is an odd number.
Total number of all odd numbers from 1 to 3 is 2
Sum of all the odd numbers from 1 to 3 are 4
The sum of all odd numbers is a perfect square: 4 = 2
An odd number is any integer (a whole number) that cannot be divided by 2 evenly. Odd numbers are the opposite of even numbers.
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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 3 in words is "three", meaning that:
3 is an aban number (a number without the letter a)
3 is not an eban number (as it contains the letter e)
3 is an iban number (a number without the letter i)
3 is an oban number (a number without the letter o)
3 is not a tban number (as it contains the letter t)
3 is an uban number (a number without the letter u)
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Numeral systems

How to write 3 in other number systems?
Bengali numerals
Eastern Arabic numerals٣
Hieroglyphs numeralsused in Ancient Egypt𓏼
Khmer numerals
Japanese numerals
Roman numeralsIII
Thai numerals
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Translation

How do you say 3 in 38 different languages?
Arabicثلاثة
Croatiantri
Czechtři
Danish tre
Dutchdrie
Estonianetɔ̃
Faroesetríggir
Filipinotatló
Finnishkolme
Frenchtrois
Greekτρία
Germandrei
Hebrewשלוש
Hindiतीन
Hungarianhárom
Icelandicþrír
Indonesiantiga
Italiantre
Japanese
Korean
Latviantrīs
Lithuaniantrys
Norwegiantre
Persianسه
Polishtrzy
Portuguesetrês
Romaniantrei
Russianтри
Serbianтри
Slovaktri
Slovenetri
Spanish tres
Swahilitatu
Swedishtre
Thaiสาม
Turkishüç
Ukrainianтри
Vietnameseba
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Miscellaneous

Number 3 reversed3
ASCII Code3
Unicode CharacterU+0003
Unix TimestampThu, 01 Jan 1970 00:00:03 +0000
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