The Wolverines moved into a three-way tie with Michigan State and Rutgers for sixth in the conference standings - a game behind No.
Houstan was fouled on a 3-point shot and hit all three free throws to give Michigan the lead for good and spark a 14-0 run, capped when Dickinson scored inside about 3 1/2 minutes later to make it 23-11, with 13 minutes left in the first half.
Dickinson scored six points, Diabate threw down a dunk, and Terrance Williams II's 3-pointer capped an 11-2 spurt that gave the Wolverines an 18-point lead about a minute before the break.
Gabe Brown led Michigan State (19-10, 10-8) with 12 points and Tyson Walker scored 11.
Former Indiana coach Bob Knight won 662 games in 29 years in Bloomington (662-240, .734) and Izzo has a career record of 662-262 (.716).
The Wolverines remain home to play Iowa on Wednesday before wrapping up the regular season Sunday at Ohio State — the last for four games, three against ranked opponents, in eight days.
- Michigan dominates Michigan State, 87-70, behind 33 from Hunter Dickinson247Sports
- Fired-up Hunter Dickinson, Michigan bury Michigan State in rematchThe Detroit News
- Michigan State confuses after lackluster loss at Michigan; 'I just need them to play harder'Detroit Free Press
- Hunter Dickinson's 33 points lifts Michigan basketball to 87-70 win over Michigan StateDetroit Free Press
- Michigan basketball: Hunter Dickinson leads dominating win over Michigan State, media stunned247Sports
- Adjustments prove vital against Michigan StateThe Michigan Daily
- Michigan State's topsy-turvy season takes another dip with loss at Michiganmlive.com
- Everything Tom Izzo said after Michigan State's loss to Michigan247Sports
- Michigan vs. Michigan State basketballmlive.com