Partition overlapping?

Code:

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0005fb33


   Device Boot      Start         End      Blocks   Id  System
/dev/sda1            2046   868327423   434162689    f  W95 Ext'd (LBA)
/dev/sda2       868327424   871258111     1465344   82  Linux swap / Solaris
/dev/sda3   *   871258112   976771071    52756480   83  Linux
/dev/sda5            2048   868327423   434162688    7  HPFS/NTFS/exFAT