440 (number)

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439 440 441
Cardinal four hundred forty
Ordinal 440th
(four hundred and fortieth)
Factorization 23× 5 × 11
Roman numeral CDXL
Binary 1101110002
Ternary 1210223
Quaternary 123204
Quinary 32305
Senary 20126
Octal 6708
Duodecimal 30812
Hexadecimal 1B816
Vigesimal 12020
Base 36 C836
Hebrew מת (Tav)(Mem)

440 is the natural number following 439 and preceding 441. 440 is a happy number.

  • Area Code 440 is also a phone area code for Greater Cleveland, Ohio area.
  • 440 hertz is the frequency of the note A above middle C used in standard western music theory, see A440.
  • 440 is Dominican musician Juan Luis Guerra's backup band.
  • Volvo 440
  • 440 is the name of a Beverly Hills Marketing company, also known as 440 Artist Alignment, [1]