1508

Number
$1508$ (one thousand, five hundred and eight) is:


 * $2*2 \times 13 \times 29$


 * The $12$th heptagonal pyramidal number after $1$, $8$, $26$, $60$, $115$, $196$, $308$, $456$, $645$, $880$, $1166$:
 * $1508 = 1 + 7 + 18 + 34 + 55 + 81 + 112 + 148 + 189 + 235 + 286 + 342 = \dfrac {12 \paren {12 + 1} \paren {5 \times 12 - 2} } 6$