84 (number)

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84

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84 (number)

SHOPPER'S DELIGHT


Cardinal	84 eighty-four
Ordinal	84th eighty-fourth
Factorization	$2^2 \cdot 3 \cdot 7$
Divisor s	2, 3, 4, 6, 7, 12, 14, 21, 28, 42
Roman Numeral	LXXXIV
Binary	01010100
Hexadecimal	54

IN MATHEMATICS

Eighty-four is the sum of the first seven Triangular Number s (making it a Tetrahedral Number ), as well as the sum of a Twin Prime (41 + 43).

IN ASTRONOMY

Messier Object M84 , a Magnitude 11.0 Lenticular Galaxy in the Constellation Virgo

The , a single star in the constellation Andromeda

The Saros number of the Solar Eclipse series which began on -181 April 14 and ended on 1099 May 22 . The duration of Saros series 84 was 1280.1 years, and it contained 72 solar eclipses. Further, the number of the Lunar Eclipse series which began on -96 September 13 and ended on 1401 February 28 . The duration of Saros series 84 was 1496.5 years, and it contained 84 lunar eclipses.

IN OTHER FIELDS

Eighty-four is also:

The Atomic Number of Polonium

the model number of AGM-84 Harpoon

WGS 84 - The latest revision of the World Geodetic System, a fixed global reference frame for the Earth.

the house number of 84 Avenue Foch

the number of the French Department Vaucluse

the designation of Interstate 84 , two Interstate Highways that run from Oregon to Utah and from Pennsylvania to Massachusetts .

the Code For International Direct Dial phone calls to Vietnam

a town in

a company: 84 Lumber

The ISBN Group Identifier for books published in Spain

The year AD 84 , 84 BC , or 1984 .