project-euler/Sidef/016 Power digit sum.sf

#!/usr/bin/ruby

# Author: Daniel "Trizen" Șuteu
# License: GPLv3
# Website: https://github.com/trizen

# 2^15 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26.
# What is the sum of the digits of the number 2^1000?

# https://projecteuler.net/problem=16

# Runtime: 0.147s

say (2**1000 -> digits.sum);