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12828186 = 233733937
BaseRepresentation
bin110000111011…
…111000011010
3220010201222000
4300323320122
511241000221
61134541430
7214015650
oct60737032
926121860
1012828186
117272008
124367876
132871c57
1419bcdd0
1511d5e26
hexc3be1a

12828186 has 32 divisors (see below), whose sum is σ = 32580480. Its totient is φ = 3665088.

The previous prime is 12828161. The next prime is 12828187. The reversal of 12828186 is 68182821.

It is a super-3 number, since 3×128281863 (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12828186.

It is not an unprimeable number, because it can be changed into a prime (12828187) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16591 + ... + 17346.

It is an arithmetic number, because the mean of its divisors is an integer number (1018140).

Almost surely, 212828186 is an apocalyptic number.

12828186 is an abundant number, since it is smaller than the sum of its proper divisors (19752294).

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

12828186 is a wasteful number, since it uses less digits than its factorization.

12828186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33955 (or 33949 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 12828186 is about 3581.6457111222. The cubic root of 12828186 is about 234.0929939391.

The spelling of 12828186 in words is "twelve million, eight hundred twenty-eight thousand, one hundred eighty-six".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 126 189 378 33937 67874 101811 203622 237559 305433 475118 610866 712677 916299 1425354 1832598 2138031 4276062 6414093 12828186