Given that the sum of the digits of is . Compute the sum of the digits of .
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
2 2 0 1 2 + 2 2 0 1 4 can be factored as 2 2 0 1 2 ( 1 + 2 2 ) which equals to 2 2 0 1 2 ⋅ 5 .
Factor again would give us: 2 2 0 1 2 ⋅ 5 = 2 2 0 1 1 ⋅ 2 ⋅ 5 = 2 2 0 1 1 ⋅ 1 0
We already know the digit sum of 2 2 0 1 1 . If that digit sum is multiplied by 1 0 , it would be the same digits with an extra 0 in the one's place. So the digit sum would be 2 7 3 8 + 0 = 2 7 3 8