2704

Number
$2704$ (two thousand, seven hundred and four) is:


 * $2^4 \times 13^2$


 * The $19$th square number after $1$, $4$, $36$, $121$, $144$, $256$, $324$, $400$, $576$, $784$, $900$, $961$, $1024$, $1296$, $1600$, $1764$, $1936$, $2304$ to be the $\sigma$ (sigma) value of some (strictly) positive integer:
 * $2704 = \map \sigma {2359}$


 * The $52$nd square number after $1$, $4$, $9$, $16$, $25$, $36$, $\ldots$, $1521$, $1600$, $1681$, $1764$, $1849$, $1936$, $2025$, $2116$, $2209$, $2304$, $2401$, $2500$, $2601$:
 * $2704 = 52 \times 52$