The London Mathematical Society Popular Lectures for 2013 have been announced. Professor Ray Hill, University of Salford, will talk about ‘Mathematics in the Courtroom’, and Dr. Vicky Neale, University of Cambridge, will give a lecture on ‘Addictive Number Theory’.

# You're reading: Posts Tagged: number theory

### On Disreputable Numbers

One would be hard put to ﬁnd a set of whole numbers with a more fascinating history and more elegant properties surrounded by greater depths of mystery — and more totally useless — than the perfect numbers.

— Martin Gardner

There are countless ways to classify integers. Happy, perfect, friendly, sociable, abundant, extravagant, cute, interesting, frugal, deficient, hungry, undulating, weird, vampire… the list goes on. But how useful are such classifications, beyond their inherent interestingness, and as a hook to get people into number theory?