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12390068 = 227143627
BaseRepresentation
bin101111010000…
…111010110100
3212022110222102
4233100322310
511132440233
61121321232
7210212435
oct57207264
925273872
1012390068
116aa2929
124196218
13274a702
14190748c
15114b1e8
hexbd0eb4

12390068 has 12 divisors (see below), whose sum is σ = 21988512. Its totient is φ = 6107640.

The previous prime is 12390041. The next prime is 12390083. The reversal of 12390068 is 86009321.

It is a self number, because there is not a number n which added to its sum of digits gives 12390068.

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, 21530 + ... + 22097.

It is an arithmetic number, because the mean of its divisors is an integer number (1832376).

Almost surely, 212390068 is an apocalyptic number.

It is an amenable number.

12390068 is a deficient number, since it is larger than the sum of its proper divisors (9598444).

12390068 is a wasteful number, since it uses less digits than its factorization.

12390068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43702 (or 43700 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 12390068 is about 3519.9528405932. The cubic root of 12390068 is about 231.3970919071.

Adding to 12390068 its reverse (86009321), we get a palindrome (98399389).

The spelling of 12390068 in words is "twelve million, three hundred ninety thousand, sixty-eight".

Divisors: 1 2 4 71 142 284 43627 87254 174508 3097517 6195034 12390068