I am 100 years old in base 8 today.

Lately the idea of power birthdays crossed my mind. Mathematically, power birthdays would satisfy the equation z = y^x for integer values of y and x greater than one. So:

• 4
• 8
• 9
• 16
• 25
• 27
• 32
• 36
• 49
• 64
• 81
• 100
• 121
• 125
• 128

These are the birthdays that might be obtainable by a human. That last two have not been reached. (There is some dispute over the 122 year old.)

Sixty four stands out, however, as it is a power of three different numbers, 2^6, 4^3, and 8^2. So to me it’s a much more significant birthday than 65, so it’s good that it has it’s own song.