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12206528 = 26892143
BaseRepresentation
bin101110100100…
…000111000000
3211222011012122
4232210013000
511111102103
61113343412
7205516355
oct56440700
924864178
1012206528
116987a44
124107b68
1326b4cc9
14189a62c
151111b38
hexba41c0

12206528 has 28 divisors (see below), whose sum is σ = 24505920. Its totient is φ = 6031872.

The previous prime is 12206507. The next prime is 12206543. The reversal of 12206528 is 82560221.

It is a junction number, because it is equal to n+sod(n) for n = 12206497 and 12206506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4625 + ... + 6767.

Almost surely, 212206528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12206528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12252960).

12206528 is an abundant number, since it is smaller than the sum of its proper divisors (12299392).

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

12206528 is an equidigital number, since it uses as much as digits as its factorization.

12206528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244 (or 2234 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 12206528 is about 3493.7841948237. The cubic root of 12206528 is about 230.2488044806.

Adding to 12206528 its reverse (82560221), we get a palindrome (94766749).

The spelling of 12206528 in words is "twelve million, two hundred six thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 16 32 64 89 178 356 712 1424 2143 2848 4286 5696 8572 17144 34288 68576 137152 190727 381454 762908 1525816 3051632 6103264 12206528