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12828663 = 324333149
BaseRepresentation
bin110000111011…
…111111110111
3220010202121200
4300323333313
511241004123
61134543543
7214020231
oct60737767
926122550
1012828663
117272401
124367bb3
132872233
1419bd251
1511d6143
hexc3bff7

12828663 has 12 divisors (see below), whose sum is σ = 18961800. Its totient is φ = 8353296.

The previous prime is 12828661. The next prime is 12828679. The reversal of 12828663 is 36682821.

It is not a de Polignac number, because 12828663 - 21 = 12828661 is a prime.

It is a super-3 number, since 3×128286633 (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12828661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16188 + ... + 16961.

It is an arithmetic number, because the mean of its divisors is an integer number (1580150).

Almost surely, 212828663 is an apocalyptic number.

12828663 is a deficient number, since it is larger than the sum of its proper divisors (6133137).

12828663 is a wasteful number, since it uses less digits than its factorization.

12828663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33198 (or 33195 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 12828663 is about 3581.7123000040. The cubic root of 12828663 is about 234.0958953879.

The spelling of 12828663 in words is "twelve million, eight hundred twenty-eight thousand, six hundred sixty-three".

Divisors: 1 3 9 43 129 387 33149 99447 298341 1425407 4276221 12828663