="toS">
      toString<code class='inset'>.toS([base]) &rArr; <i>string</i></code>
    </h5>
    <p>
      <code>base</code> : <i>number</i> : integer, 2 to 36 inclusive
    </p>
    <p>
      Returns a string representing the value of this BigNumber in the specified
      base, or base 10 if <code>base</code> is omitted. Like
      <code>Number.toString</code>, in bases above 10, numerals above 9 are
      represented by lower-case letters.
    </p>
    <p>
      If a base is specified the value is rounded