84 (number)

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← 83 84 85 →
Cardinal eighty-four
Ordinal 84th
(eighty-fourth)
Factorization 22× 3 × 7
Divisors 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
Roman numeral LXXXIV
Binary 10101002
Ternary 100103
Quaternary 11104
Quinary 3145
Senary 2206
Octal 1248
Duodecimal 7012
Hexadecimal 5416
Vigesimal 4420
Base 36 2C36

84 (eighty-four) is the natural number following 83 and preceding 85.

In mathematics[edit]

A hepteract is a seven-dimensional hypercube with 84 penteract 5-faces

84 is:


A hepteract is a seven-dimensional hypercube with 84 penteract 5-faces.



In astronomy[edit]

In other fields[edit]

Eighty-four is also:

See also[edit]

References[edit]