2916

Number
$2916$ (two thousand, nine hundred and sixteen) is:


 * $2^2 \times 3^6$


 * The $20$th square number after $1$, $4$, $36$, $121$, $144$, $256$, $324$, $400$, $576$, $784$, $900$, $961$, $1024$, $1296$, $1600$, $1764$, $1936$, $2304$, $2704$ to be the $\sigma$ (sigma) value of some (strictly) positive integer:
 * $2916 = \map \sigma {1802} = \map \sigma {1942}$


 * The $54$th square number after $1$, $4$, $9$, $16$, $25$, $36$, $\ldots$, $1936$, $2025$, $2116$, $2209$, $2304$, $2401$, $2500$, $2601$, $2704$, $2809$:
 * $2916 = 54 \times 54$