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42

Number 42 (forty-two) is an even two-digits composite number and natural number following 41 and preceding 43.

Properties of the number 42

 Nominal 42 Cardinal forty-two Ordinal 42nd Number of digits 2 Sum of digits 6 Product of digits 8 Number parity Even
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Prime Factorization of 42

 Prime factorization 2 x 3 x 7 Prime factors 2, 3, 7 Number of distinct prime factors ω(n) 3 Total number of prime factors Ω(n) 3 Sum of prime factors 12 Product of prime factors 42
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Divisors of 42

 List of proper divisors 1, 2, 3, 6, 7, 14, 21 List of all dividers 1, 2, 3, 6, 7, 14, 21, 42 Number of divisors d(n) 8 Sum of all divisors σ(n) 96 Aliquot sum 54 42 is an abundant number , because the sum of its proper divisors (54) is greater than itself. Its abundance is 12.
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Prime numbers

 Is 42 a prime number? No Is 42 a semiprime number? No Is 42 a Chen prime number? No Is 42 a Mersenne prime number? No
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Sequences

 Is 42 a Catalan number? Yes: C5 Is 42 a Fibonacci number? No Is 42 a Idoneal number? Yes: I24
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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.
 42 is not a Happy number 42 is a Humble number 42 is not a Münchhausen number 42 is not a Perfect number 42 is not a Perfect square 42 is not a Palindrome
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Numeric Bases of 42

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
2Binary1010102
3Ternary11203
4Quaternary2224
5Quinary1325
6Senary1106
7Septenary607
8Octal528
9Nonary469
10Decimal42
12Duodecimal3612
20Vigesimal2220
36Base361636
60Sexagesimalg60
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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 42 (n2) 1764 Cube of 42 (n3) 74088 Square root of 42 6.48074 Natural Logarithm (ln) of 42 3.73767 Decimal Logarithm (log) of 42 1.62325
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Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
 Sine of 42 -0.916522 Cosecant of 42 -1.09108 Cosine of 42 -0.399985 Secant of 42 -2.50009 Tangent of 42 2.29139 Cotangent of 42 0.436417
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Number parity

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

Is 42 an Even Number?

Yes, the number 42 is an even number.

Is 42 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 42 in words is "forty-two", meaning that: 42 is an aban number (a number without the letter a) 42 is an eban number (a number without the letter e) 42 is an iban number (a number without the letter i) 42 is not an oban number (as it contains the letter o) 42 is not a tban number (as it contains the letter t) 42 is an uban number (a number without the letter u)
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Numeral systems

How to write 42 in other number systems?
 Bengali numerals ৪২ Eastern Arabic numerals ٤٢ Hieroglyphs numeralsused in Ancient Egypt 𓎉𓏻 Khmer numerals ៤២ Japanese numerals 四十二 Roman numerals XLII Thai numerals ๔๒
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Translation

How do you say 42 in 38 different languages?
 Arabic إثنان و أربعون Croatian četrdeset i dva Czech čtyřicet dva Danish to og fyrre Dutch tweeenveertig Estonian blaene vɔ eve Faroese fýrati­tveir Filipino ápat na pû’t dalawá Finnish neljä­kymmentä­kaksi French quarante-deux Greek σαράντα δύο German zwei­und­vierzig Hebrew ארבעים ושתיים Hindi बयालीस Hungarian negyven­kettő Icelandic fjörutíu og tveir Indonesian empat puluh dua Italian quarantadue Japanese 四十二 Korean 사십이 Latvian četrdesmit divi Lithuanian keturiasdešimt du Norwegian førti­to Persian چهل و دو Polish czterdzieści dwa Portuguese quarenta e dois Romanian patruzeci şi doi Russian сорок два Serbian четрдесет и два Slovak štyridsať­dva Slovene štirideset dva Spanish cuarenta y dos Swahili arobaini na mbili Swedish fyrtiotvå Thai สี่​สิบ​สอง Turkish kırk iki Ukrainian сорок два Vietnamese bốn mươi hai
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Miscellaneous

 Number 42 reversed 24 ASCII Code 42 * Unicode Character U+002A * Unix Timestamp Thu, 01 Jan 1970 00:00:42 +0000
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