Somewhere else, part 145

Not only is 145 a Leyland number, since 145=34+43, much more fun, it is a factorion, i.e. it is the sum of the factorials of its digits 145=1!+4!+5! which is quite a rare property actually (the other known one being 40,585… so the next time I will mention this property on my blog is probably in 400 years).

Continue reading Somewhere else, part 145