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60 (number)

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60 (number)

60 (sixty) (Listen) is the natural number following 59 and preceding 61. Being three times 20, it is called threescore in older literature (kopa in Slavic, Schock in Germanic).

60 is the 4th superior highly composite number, the 4th colossally abundant number, the 9th highly composite number, a unitary perfect number, and an abundant number. It is the smallest number divisible by the numbers 1 to 6.

The smallest group that is not solvable is the alternating group A5, which has 60 elements.

There are 60 one-sided hexominoes, the polyominoes made from six squares.

There are 60 seconds in a minute, as well as 60 minutes in a degree.

The first fullerene to be discovered was buckminsterfullerene C60, an allotrope of carbon with 60 atoms in each molecule, arranged in a truncated icosahedron. This ball is known as a buckyball, and looks like a soccer ball.

The atomic number of neodymium is 60, and cobalt-60 (60Co) is a radioactive isotope of cobalt.

The electrical utility frequency in western Japan, South Korea, Taiwan, the Philippines, the United States, and several other countries in the Americas is 60 Hz.

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