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# 47

Number 47 (forty-seven) is an odd two-digits prime number and natural number following 46 and preceding 48.

## Properties of the number 47

 Nominal 47 Cardinal forty-seven Ordinal 47th Number of digits 2 Sum of digits 11 Product of digits 28 Number parity Odd
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## Prime Factorization of 47

 Prime factorization 47 Prime factors 47 Number of distinct prime factors ω(n) 1 Total number of prime factors Ω(n) 1 Sum of prime factors 47 Product of prime factors 47
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## Divisors of 47

 List of proper divisors 1 List of all dividers 1, 47 Number of divisors d(n) 2 Sum of all divisors σ(n) 48 Aliquot sum 1 47 is a deficient number , since it is larger than the sum of its proper divisors (1). Its deficiency is 46.
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## Prime numbers

 Is 47 a prime number? Yes Is 47 a semiprime number? No Is 47 a Chen prime number? Yes Is 47 a Mersenne prime number? No
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## Sequences

 Is 47 a Catalan number? No Is 47 a Fibonacci number? No Is 47 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.
 47 is not a Happy number 47 is not a Humble number 47 is not a Münchhausen number 47 is not a Perfect number 47 is not a Perfect square 47 is not a Palindrome
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## Numeric Bases of 47

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
2Binary1011112
3Ternary12023
4Quaternary2334
5Quinary1425
6Senary1156
7Septenary657
8Octal578
9Nonary529
10Decimal47
12Duodecimal3b12
20Vigesimal2720
36Base361b36
60Sexagesimall60
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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 47 (n2) 2209 Cube of 47 (n3) 103823 Square root of 47 6.85565 Natural Logarithm (ln) of 47 3.85015 Decimal Logarithm (log) of 47 1.6721
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## Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
 Sine of 47 0.123573 Cosecant of 47 8.09237 Cosine of 47 -0.992335 Secant of 47 -1.00772 Tangent of 47 -0.124528 Cotangent of 47 -8.03035
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## Number parity

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

No

### Is 47 an Odd Number?

Yes, the number 47 is an odd number.
Total number of all odd numbers from 1 to 47 is 24
Sum of all the odd numbers from 1 to 47 are 576
The sum of all odd numbers is a perfect square: 576 = 24
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 47 in words is "forty-seven", meaning that: 47 is an aban number (a number without the letter a) 47 is not an eban number (as it contains the letter e) 47 is an iban number (a number without the letter i) 47 is not an oban number (as it contains the letter o) 47 is not a tban number (as it contains the letter t) 47 is an uban number (a number without the letter u)
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## Numeral systems

How to write 47 in other number systems?
 Bengali numerals ৪৭ Eastern Arabic numerals ٤٧ Hieroglyphs numeralsused in Ancient Egypt 𓎉𓐀 Khmer numerals ៤៧ Japanese numerals 四十七 Roman numerals XLVII Thai numerals ๔๗
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## Translation

How do you say 47 in 38 different languages?
 Arabic سبعة و أربعون Croatian četrdeset i sedam Czech čtyřicet sedm Danish syv og fyrre Dutch zevenenveertig Estonian blaene vɔ adre Faroese fýrati­sjey Filipino ápat na pû’t pitó Finnish neljä­kymmentä­seitsemän French quarante-sept Greek σαράντα επτά German sieben­und­vierzig Hebrew ארבעים ושבע Hindi सैंतालीस Hungarian negyven­hét Icelandic fjörutíu og sjó Indonesian empat puluh tujuh Italian quarantasette Japanese 四十七 Korean 사십칠 Latvian četrdesmit septiņi Lithuanian keturiasdešimt septyni Norwegian førti­sju Persian چهل و هفت Polish czterdzieści siedem Portuguese quarenta e sete Romanian patruzeci şi şapte Russian сорок семь Serbian четрдесет и седам Slovak štyridsať­sedem Slovene štirideset sedem Spanish cuarenta y siete Swahili arobaini na saba Swedish fyrtiosju Thai สี่​สิบ​เจ็ด Turkish kırk yedi Ukrainian сорок сім Vietnamese bốn mươi bảy
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## Miscellaneous

 Number 47 reversed 74 ASCII Code 47 / Unicode Character U+002F / Unix Timestamp Thu, 01 Jan 1970 00:00:47 +0000
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