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68134012 = 22151111273
BaseRepresentation
bin1000000111110…
…10010001111100
311202012120021221
410003322101330
5114420242022
610432203124
71455062302
oct403722174
9152176257
1068134012
1135507101
121a9994a4
13111673ab
149098272
155eaccc7
hex40fa47c

68134012 has 12 divisors (see below), whose sum is σ = 119324016. Its totient is φ = 34041440.

The previous prime is 68133979. The next prime is 68134037. The reversal of 68134012 is 21043186.

It is a super-2 number, since 2×681340122 = 9284487182432288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408 + ... + 11680.

It is an arithmetic number, because the mean of its divisors is an integer number (9943668).

Almost surely, 268134012 is an apocalyptic number.

It is an amenable number.

68134012 is a deficient number, since it is larger than the sum of its proper divisors (51190004).

68134012 is a wasteful number, since it uses less digits than its factorization.

68134012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12788 (or 12786 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 68134012 is about 8254.3329227746. The cubic root of 68134012 is about 408.4334669694.

Adding to 68134012 its reverse (21043186), we get a palindrome (89177198).

The spelling of 68134012 in words is "sixty-eight million, one hundred thirty-four thousand, twelve".

Divisors: 1 2 4 1511 3022 6044 11273 22546 45092 17033503 34067006 68134012