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50 (number)
50 (fifty) is the natural number following 49 (number), 49 and preceding 51 (number), 51. In mathematics Fifty is the smallest number that is the sum of two non-zero square numbers in two distinct ways: 50 = 12 + 72 = 52 + 52. It is also the sum of three squares, 50 = 32 + 42 + 52, and the sum of four squares, 50 = 62 + 32 + 22 + 12. It is a Harshad number. 50 is a Stirling number of the first kind: \left[\right] = 50 and also a Narayana number: \operatorname(6, 3) = \operatorname(6, 4) = 50 There is no solution to the equation Euler's totient function, φ(''x'') = 50, making 50 a nontotient. Nor is there a solution to the equation ''x'' − φ(''x'') = 50, making 50 a noncototient. In science *The atomic number of tin *The fifth magic number (physics), magic number in nuclear physics In religion *In Kabbalah, there are 50 Gates of Wisdom (or Understanding) and 50 Gates of Impurity *The traditional number of years in a Jubilee (biblical), jubilee period.Leviticus 25:10 *Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Number
In mathematics, the natural numbers are those numbers used for counting (as in "there are ''six'' coins on the table") and ordering (as in "this is the ''third'' largest city in the country"). Numbers used for counting are called ''Cardinal number, cardinal numbers'', and numbers used for ordering are called ''Ordinal number, ordinal numbers''. Natural numbers are sometimes used as labels, known as ''nominal numbers'', having none of the properties of numbers in a mathematical sense (e.g. sports Number (sports), jersey numbers). Some definitions, including the standard ISO/IEC 80000, ISO 80000-2, begin the natural numbers with , corresponding to the non-negative integers , whereas others start with , corresponding to the positive integers Texts that exclude zero from the natural numbers sometimes refer to the natural numbers together with zero as the whole numbers, while in other writings, that term is used instead for the integers (including negative integers). The natural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Easter Season
Eastertide (also known as Eastertime or the Easter season) or Paschaltide (also known as Paschaltime or the Paschal season) is a festal season in the liturgical year of Christianity that focuses on celebrating the Resurrection of Jesus Christ. It begins on Easter Sunday, which initiates Easter Week in Western Christianity, and Bright Week in Eastern Christianity. There are several Eastertide customs across the Christian world, including sunrise services, exclaiming the Paschal greeting, clipping the church, and decorating Easter eggs, a symbol of the empty tomb. Eastertide customs include egg hunting, eating special Easter foods and watching Easter parades. Traditionally lasting 40 days to commemorate the time the resurrected Jesus remained on earth before departing (the period between Easter Day and the Ascension), 20th century liturgical revision has led some western churches to expand Eastertide to 50 days to conclude on Whitsunday. Western Christianity Easter time is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Highways Numbered 50
The following highways are numbered 50: International * European route E50 Brazil * BR-050 Canada * Alberta Highway 50 * Manitoba Highway 50 * Newfoundland and Labrador Route 50 * Ontario Highway 50 (Also referred to as Peel Regional Road 50 and York Regional Road 24) * Quebec Autoroute 50 China * G50 Shanghai–Chongqing Expressway, G50 Expressway Czech Republic * I/50 Highway (Czech Republic), I/50 Highway; Czech: :cz:Silnice I/50, Silnice I/50 Finland * Ring III (Kt 50) India * , a National Highway between Pune and Nashik cities Ireland * M50 motorway (Ireland) Israel * Begin Expressway Highway 50 (Israel). A freeway in Jerusalem, Israel. Italy * Autostrada A50 Japan * Japan National Route 50 Jordan * Korea, South * Yeongdong Expressway * National Route 50 (South Korea), National Route 50 Malaysia * Malaysia Federal Route 50 New Zealand * New Zealand State Highway 50 Poland * National road 50 (Poland), DK50, a National roads in Poland, national road funct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wedding Anniversary
A wedding anniversary is the anniversary of the date a wedding took place. Couples may take the occasion to celebrate their relationship, either privately or with a larger party. Special celebrations and gifts are often given for particular anniversary milestones (e.g. 10, 15, 20, 25 years). In some cultures, traditional names exist for milestone anniversaries; for instance, fifty years of marriage may be known as a "golden wedding anniversary", "golden anniversary" or "golden wedding". Recognition Celebrating wedding anniversaries as ''gold'' (50 years) or ''silver'' (25 years) is documented in Germanic countries since the 1500s. In the twentieth century, commercialism led to the celebration of more anniversaries according to a list of predetermined gifts. In some parts of the world, couples can receive special recognition from government officials for particular milestones. In the Commonwealth realms, one can receive a message from the monarch for 60th, 65th, and 70th weddin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Percentage
In mathematics, a percentage (from la, per centum, "by a hundred") is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", although the abbreviations "pct.", "pct" and sometimes "pc" are also used. A percentage is a dimensionless number (pure number); it has no unit of measurement. Examples For example, 45% (read as "forty-five per cent") is equal to the fraction , the ratio 45:55 (or 45:100 when comparing to the total rather than the other portion), or 0.45. Percentages are often used to express a proportionate part of a total. (Similarly, one can also express a number as a fraction of 1,000, using the term "per mille" or the symbol "".) Example 1 If 50% of the total number of students in the class are male, that means that 50 out of every 100 students are male. If there are 500 students, then 250 of them are male. Example 2 An increase of $0.15 on a price of $2.50 is an increase by a fraction of = 0.06. Expressed as a p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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