const math/big.maxBaseSmall

3 uses

	math/big (current package)
		natconv.go#L26: const maxBaseSmall = 10 + ('z' - 'a' + 1)
		natconv.go#L209: 				if b <= maxBaseSmall {
		natconv.go#L212: 					d1 = Word(ch - 'A' + maxBaseSmall)