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12882666 = 237130241
BaseRepresentation
bin110001001001…
…001011101010
3220020111200210
4301021023222
511244221131
61140041550
7214333536
oct61111352
926214623
1012882666
1172a9a35
1243932b6
1328909a4
1419d4bc6
1511e7146
hexc492ea

12882666 has 16 divisors (see below), whose sum is σ = 26129088. Its totient is φ = 4233600.

The previous prime is 12882643. The next prime is 12882677. The reversal of 12882666 is 66628821.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14695 + ... + 15546.

It is an arithmetic number, because the mean of its divisors is an integer number (1633068).

Almost surely, 212882666 is an apocalyptic number.

12882666 is an abundant number, since it is smaller than the sum of its proper divisors (13246422).

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

12882666 is a wasteful number, since it uses less digits than its factorization.

12882666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30317.

The product of its digits is 55296, while the sum is 39.

The square root of 12882666 is about 3589.2430956958. The cubic root of 12882666 is about 234.4239156214.

The spelling of 12882666 in words is "twelve million, eight hundred eighty-two thousand, six hundred sixty-six".

Divisors: 1 2 3 6 71 142 213 426 30241 60482 90723 181446 2147111 4294222 6441333 12882666