Finding Mystery Numbers Part 2

1.  I am a 7-digit number.  My millions digit, 6, is 2 times my ten-thousands digit.  My thousands digit is 3 times my ten-thousands digit.  The sum of my digits is 18.  What number am I?


2.  I am a number less than 40 000.  All my digits are multiples of 3.  My first, third, and fifth digits are the same.  Both my thousands digit and my tens digit are 6 more than the others.  What number am I?