420 (number)

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← 419 420 421 →
Cardinal four hundred twenty
Ordinal 420th
(four hundred twentieth)
Factorization 22× 3 × 5 × 7
Greek numeral ΥΚ´
Roman numeral CDXX
Binary 1101001002
Ternary 1201203
Quaternary 122104
Quinary 31405
Senary 15406
Octal 6448
Duodecimal 2B012
Hexadecimal 1A416
Vigesimal 11020
Base 36 BO36

420 (four hundred [and] twenty) is the natural number following 419 and preceding 421.

In mathematics[edit]

420 is:

In other fields[edit]

  • 420 is a code-term that refers to the consumption of cannabis.

References[edit]

  1. ^ "Sloane's A028442 : Numbers n such that Mertens' function is zero". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-02. 
  2. ^ "Sloane's A036913 : Sparsely totient numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-02. 
  3. ^ "Sloane's A002378 : Oblong (or promic, pronic, or heteromecic) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-02.