my $som_rekening = "2147483648";

my $pad_len_sum = 15;

my $padded_som = sprintf("%0${pad_len_sum}s", $som_rekening);

print "PADDED SOM: $padded_som - $som_rekening\n";

##</code><code>##

PADDED SOM: 000002147483647 - 2147483648

##</code><code>##

my $som_rekening = "2147483648";

my $pad_len_sum = 15;

my $padded_som = sprintf("%0${pad_len_sum}s", $som_rekening);

print "PADDED SOM: $padded_som - $som_rekening\n";

##</code><code>##

PADDED SOM: 000002147483648 - 2147483648