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# 72

Number 72 (seventy-two) is an even two-digits composite number and natural number following 71 and preceding 73.

## Properties of the number 72

 Nominal 72 Cardinal seventy-two Ordinal 72nd Number of digits 2 Sum of digits 9 Product of digits 14 Number parity Even
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## Prime Factorization of 72

 Prime factorization 2 x 2 x 2 x 3 x 3 Prime factorization in exponent form 23 x 32 Prime factors 2, 3 Number of distinct prime factors ω(n) 2 Total number of prime factors Ω(n) 5 Sum of prime factors 5 Product of prime factors 6
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## Divisors of 72

 List of proper divisors 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 List of all dividers 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 Number of divisors d(n) 12 Sum of all divisors σ(n) 195 Aliquot sum 123 72 is an abundant number , because the sum of its proper divisors (123) is greater than itself. Its abundance is 51.
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## Prime numbers

 Is 72 a prime number? No Is 72 a semiprime number? No Is 72 a Chen prime number? No Is 72 a Mersenne prime number? No
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## Sequences

 Is 72 a Catalan number? No Is 72 a Fibonacci number? No Is 72 a Idoneal number? Yes: I31
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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.
 72 is not a Happy number 72 is a Humble number 72 is not a Münchhausen number 72 is not a Perfect number 72 is not a Perfect square 72 is not a Palindrome
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## Numeric Bases of 72

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
2Binary10010002
3Ternary22003
4Quaternary10204
5Quinary2425
6Senary2006
7Septenary1327
8Octal1108
9Nonary809
10Decimal72
12Duodecimal6012
20Vigesimal3c20
36Base362036
60Sexagesimal1C60
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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 72 (n2) 5184 Cube of 72 (n3) 373248 Square root of 72 8.48528 Natural Logarithm (ln) of 72 4.27667 Decimal Logarithm (log) of 72 1.85733
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## Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
 Sine of 72 0.253823 Cosecant of 72 3.93975 Cosine of 72 -0.967251 Secant of 72 -1.03386 Tangent of 72 -0.262417 Cotangent of 72 -3.81072
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## Number parity

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

### Is 72 an Even Number?

Yes, the number 72 is an even number.

### Is 72 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 72 in words is "seventy-two", meaning that: 72 is an aban number (a number without the letter a) 72 is not an eban number (as it contains the letter e) 72 is an iban number (a number without the letter i) 72 is not an oban number (as it contains the letter o) 72 is not a tban number (as it contains the letter t) 72 is an uban number (a number without the letter u)
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## Numeral systems

How to write 72 in other number systems?
 Bengali numerals ৭২ Eastern Arabic numerals ٧٢ Hieroglyphs numeralsused in Ancient Egypt 𓎌𓏻 Khmer numerals ៧២ Japanese numerals 七十二 Roman numerals LXXII Thai numerals ๗๒
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## Translation

How do you say 72 in 38 different languages?
 Arabic إثنان و سبعون Croatian sedamdeset i dva Czech sedmdesát dva Danish to og halvfjerds Dutch tweeenzeventig Estonian blaadre vɔ eve Faroese sjeyti­tveir Filipino pitóng pû’t dalawá Finnish seitsemän­kymmentä­kaksi French soixante-douze Greek εβδομήντα δύο German zwei­und­siebzig Hebrew שבעים ושתיים Hindi बहत्तर Hungarian hetven­kettő Icelandic sjötíu og tveir Indonesian tujuh puluh dua Italian settantadue Japanese 七十二 Korean 칠십이 Latvian septiņdesmit divi Lithuanian septyniasdešimt du Norwegian sytti­to Persian هفتاد و دو Polish siedemdziesiąt dwa Portuguese setenta e dois Romanian şaptezeci şi doi Russian семьдесят два Serbian седамдесет и два Slovak sedemdesiat­dva Slovene sedemdeset dva Spanish setenta y dos Swahili sabini na mbili Swedish sjutiotvå Thai เจ็ด​สิบ​สอง Turkish yetmiş iki Ukrainian сімдесят два Vietnamese bảy mươi hai
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## Miscellaneous

 Number 72 reversed 27 ASCII Code 72 H Unicode Character U+0048 H Unix Timestamp Thu, 01 Jan 1970 00:01:12 +0000
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