It’s my birthday today and Simon has calculated my age in bases 2-12, 16 and 20! In the video, he explains what my color is in hexadecimal (base 16), how can turn my age into 33 and why it’s cool to be the age of a Mersenne number (so that I start looking forward to turning 63). He also shows a cool way to generate Mersenne numbers, Fibonacci numbers and Lucas numbers.

My birthday in all the bases up to 20 and my colour:

In binary:

In base 5:

Simon’s present: a magic square adding up to 39 in all the rows and columns (and diagonals):