2926

Number
$2926$ (two thousand, nine hundred and twenty-six) is:
 * $2 \times 7 \times 11 \times 19$


 * The $76$th triangular number after $1$, $3$, $6$, $10$, $15$, $\ldots$, $2211$, $2278$, $2346$, $2415$, $2485$, $2556$, $2628$, $2701$, $2775$, $2850$:
 * $2926 = \displaystyle \sum_{k \mathop = 1}^{76} k = \dfrac {76 \times \left({76 + 1}\right)} 2$


 * The $44$th second pentagonal number after $2$, $7$, $15$, $26$, $\ldots$, $1962$, $2072$, $2185$, $2301$, $2420$, $2542$, $2667$, $2795$:
 * $2926 = \dfrac {44 \left({3 \times 44 + 1}\right)} 2$


 * The $88$th generalized pentagonal number after $1$, $2$, $5$, $7$, $12$, $15$, $\ldots$, $2380$, $2420$, $2501$, $2542$, $2625$, $2667$, $2752$, $2795$, $2882$:
 * $2926 = \dfrac {44 \left({3 \times 44 + 1}\right)} 2$