376

Number
$376$ (three hundred and seventy-six) is:


 * $2^3 \times 47$


 * The $16$th pentagonal number after $1, 5, 12, 22, 35, 51, 70, 92, 117, 145, 176, 210, 247, 287, 330$:
 * $376 = \displaystyle \sum_{k \mathop = 1}^{16} \left({3 k - 2}\right) = \dfrac {16 \left({3 \times 16 - 1}\right)} 2$


 * The $31$st generalized pentagonal number after $1, 2, 5, 7, 12, 15, \ldots, 222, 247, 260, 287, 301, 330, 345$:
 * $376 = \dfrac {16 \left({3 \times 16 - 1}\right)} 2$


 * The $6$th automorphic number after $1, 5, 6, 25, 76$:
 * $376^2 = 141 \, \mathbf {376}$


 * The $17$th trimorphic number after $1, 4, 5, 6, 9, 24, 25, 49, 51, 75, 76, 99, 125, 249, 251, 375$:
 * $376^3 = 53 \, 157 \, \mathbf {499}$