# Advent calendar 2016

## 12 December

Here is a list of facts about today's number:

- If a×b is a factor of it, with a and b both positive integers, then either a or b is one.
- The sum of its digits is 14.
- It is odd.
- The product of its digits is 36.
- It is a palindrome when written in base 9.
- It is smaller than yesterday's number.
- It is 4 more than a multiple of 5.
- It is two less than a prime number.
- It is the number of a bus stopping at Richmond station.