42

In Douglas Adams' series, 'Hitchhiker's Guide to the Galaxy,' "42" is claimed to be the "Answer to Life, the Universe, and Everything, the final product of a calculation so complex that the Earth itself and all the forms of life thereon were actually a massively complex calculator designed to work it out. x3+y3+z3=42: 42 = (-80538738812075974)^3 + 80435758145817515^3 + 12602123297335631^3." Artist Billie Halliday