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84

Number 84 (eighty-four) is an even two-digits composite number and natural number following 83 and preceding 85.

Properties of the number 84

Nominal84
Cardinaleighty-four
Ordinal84th
Number of digits2
Sum of digits12
Product of digits32
Number parityEven
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Prime Factorization of 84

Prime factorization2 x 2 x 3 x 7
Prime factorization in exponent form22 x 3 x 7
Prime factors2, 3, 7
Number of distinct prime factors ω(n)3
Total number of prime factors Ω(n)4
Sum of prime factors12
Product of prime factors42
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Divisors of 84

List of proper divisors 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42
List of all dividers1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
Number of divisors d(n)12
Sum of all divisors σ(n)224
Aliquot sum 140
84 is an abundant number , because the sum of its proper divisors (140) is greater than itself. Its abundance is 56.
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Prime numbers

Is 84 a prime number?No
Is 84 a semiprime number?No
Is 84 a Chen prime number?No
Is 84 a Mersenne prime number?No
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Sequences

Is 84 a Catalan number?No
Is 84 a Fibonacci number?No
Is 84 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.
84 is not a Happy number
84 is a Humble number
84 is not a Münchhausen number
84 is not a Perfect number
84 is not a Perfect square
84 is not a Palindrome
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Numeric Bases of 84

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
2Binary10101002
3Ternary100103
4Quaternary11104
5Quinary3145
6Senary2206
7Septenary1507
8Octal1248
9Nonary1039
10Decimal84
12Duodecimal7012
16Hexadecimal5416
20Vigesimal4420
36Base362c36
60Sexagesimal1O60
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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 84 (n2)7056
Cube of 84 (n3)592704
Square root of 849.1651513899117
Natural Logarithm (ln) of 844.4308167988433
Decimal Logarithm (log) of 841.9242792860619
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Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
Sine of 840.73319032007329
Cosecant of 841.3639023492564
Cosine of 84-0.68002349558734
Secant of 84-1.4705374247934
Tangent of 84-1.078183805164
Cotangent of 84-0.92748564318111
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Number parity

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

Is 84 an Even Number?

Yes, the number 84 is an even number.

Is 84 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 84 in words is "eighty-four", meaning that:
84 is an aban number (a number without the letter a)
84 is not an eban number (as it contains the letter e)
84 is not an iban number (as it contains the letter i)
84 is not an oban number (as it contains the letter o)
84 is not a tban number (as it contains the letter t)
84 is not an uban number (as it contains the letter u)
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Numeral systems

How to write 84 in other number systems?
Bengali numerals৮৪
Eastern Arabic numerals٨٤
Hieroglyphs numeralsused in Ancient Egypt𓎍𓏽
Khmer numerals៨៤
Japanese numerals八十四
Roman numeralsLXXXIV
Thai numerals๘๔
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Translation

How do you say 84 in 38 different languages?
Arabicأربعة و ثمانون
Croatianosamdeset i četiri
Czechosmdesát čtyři
Danish fire og firs
Dutchvierentachtig
Estonianblaenyi vɔ ene
Faroeseáttati­fýre
Filipinowalóng pû’t ápat
Finnishkahdeksan­kymmentä­neljä
Frenchquatre-vingt-quatre
Greekογδόντα τέσσερα
Germanvier­und­achtzig
Hebrewשמונים וארבע
Hindiचौरासी
Hungariannyolcvan­négy
Icelandicáttatíu og fjórir
Indonesiandelapan puluh empat
Italianottantaquattro
Japanese八十四
Korean팔십사
Latvianastoņdesmit četri
Lithuanianaštuoniasdešimt keturi
Norwegianåtti­fire
Persianهشتاد و چهار
Polishosiemdziesiąt cztery
Portugueseoitenta e quatro
Romanianoptzeci şi patru
Russianвосемьдесят четыре
Serbianосамдесет и четири
Slovakosemdesiat­štyri
Sloveneosemdeset štiri
Spanish ochenta y cuatro
Swahilithemanini na nne
Swedishåttiofyra
Thaiแปด​สิบ​สี่
Turkishseksen dört
Ukrainianвісімдесят чотири
Vietnamesetám mươi tư
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Miscellaneous

Number 84 reversed48
ASCII Code84T
Unicode CharacterU+0054T
Unix TimestampThu, 01 Jan 1970 00:01:24 +0000
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