248 (number)
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248 (two hundred [and] forty-eight) is the natural number following 247 and preceding 249. Template:Infobox number
Additionally, 248 is:
- a nontotient. <ref>Template:Cite OEIS</ref>
- a refactorable number. <ref>Template:Cite OEIS</ref>
- an untouchable number.<ref>Template:Cite OEIS</ref>
- palindromic in bases 13 (16113), 30 (8830), 61 (4461) and 123 (22123).
- a Harshad number in bases 3, 4, 6, 7, 9, 11, 13 (and 18 other bases).
- part of the 43-aliquot tree. The aliquot sequence starting at 248 is: 248, 232, 218, 112, 136, 134, 70, 74, 40, 50, 43, 1, 0.
The exceptional Lie group E8 has dimension 248.