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68119812 = 22333717047
BaseRepresentation
bin1000000111101…
…10110100000100
311202011211211000
410003312310010
5114414313222
610432013300
71455003015
oct403666404
9152154730
1068119812
11354a7472
121a991230
1311160aa7
14909300c
155ea89ac
hex40f6d04

68119812 has 48 divisors (see below), whose sum is σ = 181390720. Its totient is φ = 22091616.

The previous prime is 68119789. The next prime is 68119817. The reversal of 68119812 is 21891186.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68119817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4528 + ... + 12519.

Almost surely, 268119812 is an apocalyptic number.

It is an amenable number.

68119812 is an abundant number, since it is smaller than the sum of its proper divisors (113270908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68119812 is a wasteful number, since it uses less digits than its factorization.

68119812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17097 (or 17089 counting only the distinct ones).

The product of its digits is 6912, while the sum is 36.

The square root of 68119812 is about 8253.4727236479. The cubic root of 68119812 is about 408.4050907442.

The spelling of 68119812 in words is "sixty-eight million, one hundred nineteen thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 37 54 74 108 111 148 222 333 444 666 999 1332 1998 3996 17047 34094 51141 68188 102282 153423 204564 306846 460269 613692 630739 920538 1261478 1841076 1892217 2522956 3784434 5676651 7568868 11353302 17029953 22706604 34059906 68119812