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# 71

Number 71 (seventy-one) is an odd two-digits prime number and natural number following 70 and preceding 72.

## Properties of the number 71

 Nominal 71 Cardinal seventy-one Ordinal 71st Number of digits 2 Sum of digits 8 Product of digits 7 Number parity Odd
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## Prime Factorization of 71

 Prime factorization 71 Prime factors 71 Number of distinct prime factors ω(n) 1 Total number of prime factors Ω(n) 1 Sum of prime factors 71 Product of prime factors 71
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## Divisors of 71

 List of proper divisors 1 List of all dividers 1, 71 Number of divisors d(n) 2 Sum of all divisors σ(n) 72 Aliquot sum 1 71 is a deficient number , since it is larger than the sum of its proper divisors (1). Its deficiency is 70.
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## Prime numbers

 Is 71 a prime number? Yes Is 71 a semiprime number? No Is 71 a Chen prime number? Yes Is 71 a Mersenne prime number? No
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## Sequences

 Is 71 a Catalan number? No Is 71 a Fibonacci number? No Is 71 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.
 71 is not a Happy number 71 is not a Humble number 71 is not a Münchhausen number 71 is not a Perfect number 71 is not a Perfect square 71 is not a Palindrome
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## Numeric Bases of 71

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
2Binary10001112
3Ternary21223
4Quaternary10134
5Quinary2415
6Senary1556
7Septenary1317
8Octal1078
9Nonary789
10Decimal71
12Duodecimal5b12
20Vigesimal3b20
36Base361z36
60Sexagesimal1B60
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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 71 (n2) 5041 Cube of 71 (n3) 357911 Square root of 71 8.42615 Natural Logarithm (ln) of 71 4.26268 Decimal Logarithm (log) of 71 1.85126
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## Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
 Sine of 71 0.951055 Cosecant of 71 1.05146 Cosine of 71 -0.309023 Secant of 71 -3.23601 Tangent of 71 -3.07762 Cotangent of 71 -0.324926
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## Number parity

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

No

### Is 71 an Odd Number?

Yes, the number 71 is an odd number.
Total number of all odd numbers from 1 to 71 is 36
Sum of all the odd numbers from 1 to 71 are 1296
The sum of all odd numbers is a perfect square: 1296 = 36
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 71 in words is "seventy-one", meaning that: 71 is an aban number (a number without the letter a) 71 is not an eban number (as it contains the letter e) 71 is an iban number (a number without the letter i) 71 is not an oban number (as it contains the letter o) 71 is not a tban number (as it contains the letter t) 71 is an uban number (a number without the letter u)
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## Numeral systems

How to write 71 in other number systems?
 Bengali numerals ৭১ Eastern Arabic numerals ٧١ Hieroglyphs numeralsused in Ancient Egypt 𓎌𓏺 Khmer numerals ៧១ Japanese numerals 七十一 Roman numerals LXXI Thai numerals ๗๑
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## Translation

How do you say 71 in 38 different languages?
 Arabic واحد و سبعون Croatian sedamdeset i jedan Czech sedmdesát jeden Danish en og halvfjerds Dutch éénenzeventig Estonian blaadre vɔ ɖekɛ Faroese sjeyti­ein Filipino pitóng pû’t isá Finnish seitsemän­kymmentä­yksi French soixante et onze Greek εβδομήντα ένα German ein­und­siebzig Hebrew שבעים ואחת Hindi इकहत्तर Hungarian hetven­egy Icelandic sjötíu og einn Indonesian tujuh puluh satu Italian settantuno Japanese 七十一 Korean 칠십일 Latvian septiņdesmit viens Lithuanian septyniasdešimt vienas Norwegian sytti­én Persian هفتاد و یک Polish siedemdziesiąt jeden Portuguese setenta e um Romanian şaptezeci şi unu Russian семьдесят один Serbian седамдесет и један Slovak sedemdesiat­jeden Slovene sedemdeset ena Spanish setenta y uno Swahili sabini na moja Swedish sjutioen Thai เจ็ด​สิบ​เอ็ด Turkish yetmiş bir Ukrainian сімдесят один Vietnamese bảy mươi mốt
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## Miscellaneous

 Number 71 reversed 17 ASCII Code 71 G Unicode Character U+0047 G Unix Timestamp Thu, 01 Jan 1970 00:01:11 +0000
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