The 48 (number) reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

48 (number)

48 is the natural number following 47 and preceding 49.

List of numbers — Integers << 40 41 42 43 44 45 46 47 48 49 >>
Cardinal	forty-eight
Ordinal	48th (forty-eighth)
Factorization
Divisors	2, 3, 4, 6, 8, 12, 16, 24
Roman numeral	XLVIII
Binary	0110000
Hexadecimal	30

In mathematics

Forty-eight is the double factorial of 6, four dozens, a highly composite number and a heptadecagonal number.

In other fields

Forty-eight is also:

• the atomic number of cadmium.
• twice the total number of major and minor keys in the Western tonal music (twenty-four), not counting enharmonic equivalents. Johann Sebastian Bach's Well-Tempered Clavier is informally known as The Forty-Eight because it consists of a prelude and a fugue in each major and minor key, for a total of forty-eight pieces.
• the code for international direct dial phone calls to Poland.
• the model number of the HP-48 S/SX/G/GX/G+/GII
• the number of hours in two days, and hence also part of the title of the movies 48 Hrs. and Another 48 Hrs., starring Eddie Murphy and Nick Nolte.
• the years AD 48, 48 BC, or 1948.

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