C :: Sorting Number As A String By Ascending Order

make my program sort data.in this case number that i declared as char(not string, my bada)if i have

name1
number 2500
email

name 2
number 2400
email

i need to put that this way:
name 2
number 2400
email

name1
number 2500
email

i saw that can be done with qsort but when i try it it doesn't work.

Code:

typedef struct {
char nome[MAX_GERAL], email[MAX_GERAL], morada[MAX_GERAL], postal[MAX_GERAL], numero[MAX_GERAL], geral[MAX_GERAL];
int telefone, FP, SD, AM1, ALGA, CM;
}dados;

code to add info i need to sort "numero"

Code:

void adicionar(dados* contacto){
if (i<total) {
printf("
Introduza o Nome: ", i + 1);
scanf(" %[^

[code]....