Number Gossip
(Enter a number and I'll tell you everything you wanted to know about it but were afraid to ask.)
Unique Properties of 163
- 163 is the smallest 3-digit number whose square (26569) and cube (4330747) use different digits
- epi*sqrt(163) differs from an integer by less than 10-12. Martin Gardner claimed that this number is an integer in 1975 April Fool's hoax
- 163 is the largest Heegner number (submitted by Qiaochu Yuan)