Forty-Nine or 49 is a Numberblock made of 49 Blocks. He is a 7 by 7 Square. He first appeared in The Big One as a compound, and his last appearance was in More To Explore in the square temple.
Numberblocks
Discovered
Zero , One , Two , Three , Four , Five , Six , Seven , Eight , Nine , Ten , Eleven , Twelve , Thirteen , Fourteen , Fifteen , Sixteen , Seventeen , Eighteen , Nineteen , Twenty , Twenty-One , Twenty-Two , Twenty-Three , Twenty-Four , Twenty-Five , Twenty-Six , Twenty-Seven , Twenty-Eight , Twenty-Nine , Thirty , Thirty-One , Thirty-Two , Thirty-Five , Thirty-Six , Forty , Forty-Five , Forty-Nine , Fifty , Fifty-Five , Sixty , Sixty-Four , Seventy , Eighty , Eighty-One , Ninety , One Hundred
Undiscovered / Non-physical
Forty-Two , Ninety-Nine , Two Hundred , Three Hundred , Nine Hundred , One Thousand , Seven Thousand , Ninety Thousand , Seven Million , Orders of Magnitude , Compound Numberblocks
Alter-Egos
The Terrible Twos , Octoblock , The Three Threes , Octonaughty , Step Squad , The Four Fours
Non-integers
Pi
Monsters
Flapjack Snaffler , Blockzilla , Big Tum , Twangle
Times Tables
One Times Table , Two Times Table , Three Times Table , Four Times Table , Five Times Table , Ten Times Table
Other
Fluffies , Squarey , Oblongy , Numberblobs , Aliens , Rainbows , Flatlanders , Sheep , Birds , What-Iffer , Rex and Rekenrek , Alphablocks , Colourblocks