No, but the question is vague.
To be precise you would say that
XII, ///// ///// //,
and 12
are different ways to represent the same number.
There are many ways to represent that number.
The number is always the same number.
But a variety of ink marks
(or pencil marks, or chalk smudges,
or characters on a computer monitor)
can represent it.
In normal conversation and in writing
"number" often means
the representation of a number.
For example, you might
12
Computer Science is concerned with using patterns of bits to represent things. It is important to be clear about the difference between the thing, and a representation of the thing. For example, there are many ways to represent an integer using bit patterns in a computer. The integer is conceptual. The bit pattern held in a memory location is only a representation.