Why fdisk creating partition with sector 32768 and not with 2048?

Issue

• Why fdisk creating partition with sector 32768 and not with 2048?

Disk /dev/sda: 2147.5 GB, 2147483648000 bytes
255 heads, 63 sectors/track, 261083 cylinders, total 4194304000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 16384 bytes / 16777216 bytes
Disk identifier: 0x162a0cbc

                       Device Boot      Start         End      Blocks   Id  System
/dev/sda1           32768  4194303999  2097135616   83  Linux