235

Number
$235$ (two hundred and thirty-five) is:
 * $5 \times 47$


 * The $10$th heptagonal number after $1, 7, 18, 34, 55, 81, 112, 148, 189$:
 * $235 = 1 + 7 + 11 + 16 + 21 + 26 + 31 + 36 + 41 + 46 = \dfrac {10 \left({5 \times 10 - 3}\right)} 2$


 * The $45$th lucky number:
 * $1, 3, 7, 9, 13, 15, 21, \ldots, 193, 195, 201, 205, 211, 219, 223, 231, 235, \ldots$