There is a unique number of ten ciphers, for which the following holds:
all ciphers from 0 up to 9 occur exactly once in the number;
the first cipher is divisible by 1;
the number formed by the first two ciphers is divisible by 2;
the number formed by the first three ciphers is divisible by 3;
the number formed by the first four ciphers is divisible by 4;
the number formed by the first five ciphers is divisible by 5;
the number formed by the first six ciphers is divisible by 6;
the number formed by the first seven ciphers is divisible by 7;
the number formed by the first eight ciphers is divisible by 8;
the number formed by the first nine ciphers is divisible by 9;
the number formed by the ten ciphers is divisible by 10. Which number is this?