EntityQ940343· pop 17· linked from 235 articlescentered heptagonal numberSign in to savesubclass of centered polygonal numberConnectionsprime numberEntityfigurate numberEntitycentered polygonal numberEntityautomorphic numberEntitynatural numberEntitybinary numeral systemEntitydigitEntity22EntityexponentiationEntitynumeral systemEntitydimensionEntity43Entitythree-dimensional spaceEntity71Entitynatural languageEntityperfect numberEntitydivisorEntityheptagonEntityrecursionEntitypermutationEntityCategoriesFigurate numbers