Remove different types of characters together from numeric values

[Barkat]

How can I remove different types of characters including blank spaces from the numeric values in a column.

I have 

a= " 12345 *duplicate ID/Name  "

I want

b=12345

Please see below what I tried.

data test;
a= " 12345 *duplicate ID/Name ";
b= input(strip(compress(a, 'abcdefghijklmnopqrstuvwxyz/*' )), 10.);
run;

[tarheel13]

data test;
a= " 12345 *duplicate ID/Name  ";
B=compress(compress(a,"`~!@#$%^&*()-_=+\|[]{};:',.<>?/"),'','A');
put a= b=;
run;

[Oligolas · Accepted solution]

data test;
a= " 12345 *duplicate ID/Name ";
b= input(compress(a,,'kd'),best.);
run;

[Barkat]

Thanks all