1312

Number
$1312$ (one thousand, three hundred and twelve) is:
 * $2^5 \times 41$


 * The $16$th primitive abundant number after $20$, $70$, $88$, $104$, $272$, $304$, $368$, $464$, $550$, $572$, $650$, $748$, $836$, $945$, $1184$:
 * $1 + 2 + 4 + 8 + 16 + 32 + 41 + 82 + 164 + 328 + 656 = 1334 > 1312$


 * The $22$nd primitive semiperfect number after $6$, $20$, $28$, $88$, $104$, $\ldots$, $572$, $650$, $748$, $770$, $910$, $945$, $1184$, $1190$:
 * $1312 = 1 + 8 + 32 + 41 + 82 + 164 + 328 + 656$

Also see

 * Tau Function of 1312