248 (number)

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.

References