C 1000000000000000000000000000 (28 digits)

main(){printf("1%027d",0);}

Similar to my C++ answer, without the #include <stdio.h> (Ignore the warning about missing declaration of "printf". Thanks @Dennis)

Newline would require an additional 2 bytes, using format "1%029d\n"

C, 1000000000000000000000000000 (28 digits)

main(){printf("1%027d",0);}

Similar to my C++ answer, without the #include <stdio.h> (Ignore the warning about missing declaration of printf. Thanks @Dennis)

Newline would require an additional 2 bytes, using format 1%029d\n

C 1000000000000000000000000000 (28 digits)

main(){printf("1%027d",0);}

Similar to my C++ answer, without the #include <stdio.h> Ignore the warning about missing declaration of "printf". Thanks @Dennis

Newline would require an additional 2 bytes, using format "1%029d\n"

C 1000000000000000000000000000 (28 digits)

main(){printf("1%027d",0);}

Similar to my C++ answer, without the #include <stdio.h> (Ignore the warning about missing declaration of "printf". Thanks @Dennis)

Newline would require an additional 2 bytes, using format "1%029d\n"

C 10000000000000000000000000000000000000000000000 (28 digits)

Similar to my C++ answer, without the #include <stdio.h> Ignore the warning about missing declaration of "printf". Thanks @Dennis

Newline would require an additional 2 bytes, using format "1%029d\n"

C 1000000000000000000000000000 (28 digits)

main(){printf("1%027d",0);}

Similar to my C++ answer, without the #include <stdio.h> Ignore the warning about missing declaration of "printf". Thanks @Dennis

Newline would require an additional 2 bytes, using format "1%029d\n"