@Override
    public int hashCode() {
        return (int)BinaryPrefix.unit.convertFrom(amount, binaryPrefix);
    }
An amount scaled by a binary prefix.

<p>
Examples: 2 kilo, 2 mega, ...
</p>

@author Tony Vaagenes
vespajlib/src/main/java/com/yahoo/binaryprefix/BinaryScaledAmount.java