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208 (number)

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208 (number)

207 208 209
Cardinal two hundred eight
Ordinal 208th
(two hundred and eighth)
Factorization 24× 13
Roman numeral CCVIII
Binary 110100002
Ternary 212013
Quaternary 31004
Quinary 13135
Senary 5446
Octal 3208
Duodecimal 15412
Hexadecimal D016
Vigesimal A820
Base 36 5S36

208 (two hundred [and] eight) is the natural number following 207 and preceding 209.

208 is a practical number,[1] a tetranacci number,[2][3] a rhombic matchstick number,[4] and a member of Aronson's sequence.[5] There are exactly 208 five-bead necklaces drawn from a set of beads with four colors,[6] and 208 generalized weak orders on three labeled points.[7][8]

References

  1. ^ "Sloane's A005153 : Practical numbers", The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  2. ^ "Sloane's A000078 : Tetranacci numbers", The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  3. ^ .
  4. ^ "Sloane's A045944 : Rhombic matchstick numbers", The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  5. ^ "Sloane's A005224 : T is the first, fourth, eleventh, ... letter in this sentence, not counting spaces or commas (Aronson's sequence)", The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  6. ^ "Sloane's A001868 : Number of n-bead necklaces with 4 colors", The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  7. ^ "Sloane's A004121 : Generalized weak orders on n points", The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  8. ^ .


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