Solution: Let this number be 10x+6.
4( 10x+6)=600000+x
40x+24=600000+x
40x-x=600000-24
39x=599976
x= 15384
So this number is10x+6 =10x15384+6 =153846.
A: This number is 153846.
I hope my answer is helpful to you.