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70

Number 70 (seventy) is an even two-digits composite number and natural number following 69 and preceding 71.

Properties of the number 70

 Nominal 70 Cardinal seventy Ordinal 70th Number of digits 2 Sum of digits 7 Product of digits 0 Number parity Even
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Prime Factorization of 70

 Prime factorization 2 x 5 x 7 Prime factors 2, 5, 7 Number of distinct prime factors ω(n) 3 Total number of prime factors Ω(n) 3 Sum of prime factors 14 Product of prime factors 70
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Divisors of 70

 List of proper divisors 1, 2, 5, 7, 10, 14, 35 List of all dividers 1, 2, 5, 7, 10, 14, 35, 70 Number of divisors d(n) 8 Sum of all divisors σ(n) 144 Aliquot sum 74 70 is an abundant number , because the sum of its proper divisors (74) is greater than itself. Its abundance is 4.
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Prime numbers

 Is 70 a prime number? No Is 70 a semiprime number? No Is 70 a Chen prime number? No Is 70 a Mersenne prime number? No
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Sequences

 Is 70 a Catalan number? No Is 70 a Fibonacci number? No Is 70 a Idoneal number? Yes: I30
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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.
 70 is a Happy number 70 is a Humble number 70 is not a Münchhausen number 70 is not a Perfect number 70 is not a Perfect square 70 is not a Palindrome
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Numeric Bases of 70

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
2Binary10001102
3Ternary21213
4Quaternary10124
5Quinary2405
6Senary1546
7Septenary1307
8Octal1068
9Nonary779
10Decimal70
12Duodecimal5a12
20Vigesimal3a20
36Base361y36
60Sexagesimal1A60
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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 70 (n2) 4900 Cube of 70 (n3) 343000 Square root of 70 8.3666 Natural Logarithm (ln) of 70 4.2485 Decimal Logarithm (log) of 70 1.8451
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Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
 Sine of 70 0.773891 Cosecant of 70 1.29217 Cosine of 70 0.633319 Secant of 70 1.57898 Tangent of 70 1.22196 Cotangent of 70 0.818357
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Number parity

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

Is 70 an Even Number?

Yes, the number 70 is an even number.

Is 70 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 70 in words is "seventy", meaning that: 70 is an aban number (a number without the letter a) 70 is not an eban number (as it contains the letter e) 70 is an iban number (a number without the letter i) 70 is an oban number (a number without the letter o) 70 is not a tban number (as it contains the letter t) 70 is an uban number (a number without the letter u)
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Numeral systems

How to write 70 in other number systems?
 Bengali numerals ৭০ Eastern Arabic numerals ٧٠ Hieroglyphs numeralsused in Ancient Egypt 𓎌 Khmer numerals ៧០ Japanese numerals 七十 Roman numerals LXX Thai numerals ๗๐
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Translation

How do you say 70 in 38 different languages?
 Arabic سبعون Croatian sedamdeset Czech sedmdesát Danish halvfjerds Dutch zeventig Estonian blaadre Faroese sjeyti Filipino pitóng pû Finnish seitsemän­kymmentä French soixante-dix Greek εβδομήντα German siebzig Hebrew שבעים Hindi सत्तर Hungarian hetven Icelandic sjötíu Indonesian tujuh puluh Italian settanta Japanese 七十 Korean 칠십 Latvian septiņdesmit Lithuanian septyniasdešimt Norwegian sytti Persian هفتاد Polish siedemdziesiąt Portuguese setenta Romanian şaptezeci Russian семьдесят Serbian седамдесет Slovak sedemdesiat Slovene sedemdeset Spanish setenta Swahili sabini Swedish sjutio Thai เจ็ด​สิบ Turkish yetmiş Ukrainian сімдесят Vietnamese bảy mươi
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Miscellaneous

 Number 70 reversed 07 ASCII Code 70 F Unicode Character U+0046 F Unix Timestamp Thu, 01 Jan 1970 00:01:10 +0000
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