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  • +1 for code, but apoorv020 first came with BigInteger solution.
    – Paya
    Commented Jul 16, 2010 at 16:13
  • Great code. Negative BigInteger case can be avoided by adding a null byte at the end to the byte array. For bases bigger than 256 it can result in a smaller string than a minus sign prefix. BigIntegers are negative if their last byte has 0x80 flag set.
    – tigrou
    Commented Dec 14, 2018 at 11:36