30 relations: Actinide, Association football, Baseball field, Harshad number, Isotope, Junie Donlavey, Kit (association football), List of country calling codes, Major League Baseball, Massachusetts, Milk, NASCAR, Natural number, Nike Total 90, Nontotient, North Pole, Perrin number, Pronic number, Semiperfect number, South Pole, Strontium, Territoire de Belfort, Thorium, Turkey, Unitary divisor, Unitary perfect number, Washington (state), 180 (number), 89 (number), 91 (number).

## Actinide

The actinide or actinoid (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium.

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## Association football

Association football, more commonly known as football or soccer, is a team sport played between two teams of eleven players with a spherical ball.

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## Baseball field

A baseball field, also called a ball field, sandlot or a baseball diamond, is the field upon which the game of baseball is played.

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## Harshad number

In recreational mathematics, a harshad number (or Niven number) in a given number base, is an integer that is divisible by the sum of its digits when written in that base.

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## Isotope

Isotopes are variants of a particular chemical element which differ in neutron number.

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## Junie Donlavey

Wesley Christian "Junie" Donlavey Jr. (April 8, 1924June 9, 2014), a native of Richmond, Virginia, was the owner of Donlavey Racing; he began fielding the team in 1950.

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## Kit (association football)

In association football, kit (also referred to as a strip or uniform) is the standard equipment and attire worn by players.

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## List of country calling codes

Country calling codes or country dial in codes are telephone dialing prefixes for the member countries or regions of the International Telecommunication Union (ITU).

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## Major League Baseball

Major League Baseball (MLB) is a professional baseball organization, the oldest of the four major professional sports leagues in the United States and Canada.

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## Massachusetts

Massachusetts, officially known as the Commonwealth of Massachusetts, is the most populous state in the New England region of the northeastern United States.

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## Milk

Milk is a white liquid produced by the mammary glands of mammals.

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## NASCAR

National Association for Stock Car Auto Racing (NASCAR) is an American auto racing sanctioning and operating company that is best known for stock-car racing.

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## Natural number

In mathematics, the natural numbers are those 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").

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## Nike Total 90

Nike Total 90 is a brand of Nike sportswear and equipment first introduced in 2000, designed to be used for association football.

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## Nontotient

In number theory, a nontotient is a positive integer n which is not a totient number: it is not in the range of Euler's totient function φ, that is, the equation φ(x).

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## North Pole

The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is (subject to the caveats explained below) defined as the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface.

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## Perrin number

In mathematics, the Perrin numbers are defined by the recurrence relation with initial values The sequence of Perrin numbers starts with The number of different maximal independent sets in an -vertex cycle graph is counted by the th Perrin number for.

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## Pronic number

A pronic number is a number which is the product of two consecutive integers, that is, a number of the form.

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## Semiperfect number

In number theory, a semiperfect number or pseudoperfect number is a natural number n that is equal to the sum of all or some of its proper divisors.

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## South Pole

The South Pole, also known as the Geographic South Pole or Terrestrial South Pole, is one of the two points where the Earth's axis of rotation intersects its surface.

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## Strontium

Strontium is the chemical element with symbol Sr and atomic number 38.

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## Territoire de Belfort

The Territoire de Belfort is a department in the Bourgogne-Franche-Comté region of eastern France.

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## Thorium

Thorium is a weakly radioactive metallic chemical element with symbol Th and atomic number 90.

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## Turkey

Turkey (Türkiye), officially the Republic of Turkey (Türkiye Cumhuriyeti), is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe.

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## Unitary divisor

In mathematics, a natural number a is a unitary divisor (or Hall divisor) of a number b if a is a divisor of b and if a and \frac are coprime, having no common factor other than 1.

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## Unitary perfect number

A unitary perfect number is an integer which is the sum of its positive proper unitary divisors, not including the number itself.

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## Washington (state)

Washington, officially the State of Washington, is a state in the Pacific Northwest region of the United States.

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## 180 (number)

180 (one hundred eighty) is the natural number following 179 and preceding 181.

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## 89 (number)

89 (eighty-nine) is the natural number following 88 and preceding 90.

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## 91 (number)

91 (ninety-one) is the natural number following 90 and preceding 92.

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