238 239 → Prime no | Factorization 2 × 7 × 17 Roman numeral CCXXXVIII | |
Cardinal two hundred thirty-eight Ordinal 238th(two hundred and thirty-eighth) | ||
238 (two hundred [and] thirty-eight) is the natural number following 237 and preceding 239.
238 is an untouchable number. There are 238 2-vertex-connected graphs on five labeled vertices, and 238 order-5 polydiamonds (polyiamonds that can partitioned into 5 diamonds). Among the 720 permutations of six elements, exactly 238 of them have a unique longest increasing subsequence.
References
238 (number) Wikipedia(Text) CC BY-SA