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12768236 = 2213298467
BaseRepresentation
bin110000101101…
…001111101100
3220000200201122
4300231033230
511232040421
61133400112
7213346115
oct60551754
926020648
1012768236
117230a68
124339038
132850890
1419a520c
1511c32ab
hexc2d3ec

12768236 has 24 divisors (see below), whose sum is σ = 24895920. Its totient is φ = 5689152.

The previous prime is 12768233. The next prime is 12768251. The reversal of 12768236 is 63286721.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12768196 and 12768205.

It is not an unprimeable number, because it can be changed into a prime (12768233) 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 7 ways as a sum of consecutive naturals, for example, 2726 + ... + 5741.

It is an arithmetic number, because the mean of its divisors is an integer number (1037330).

Almost surely, 212768236 is an apocalyptic number.

It is an amenable number.

12768236 is a deficient number, since it is larger than the sum of its proper divisors (12127684).

12768236 is a wasteful number, since it uses less digits than its factorization.

12768236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8513 (or 8511 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 12768236 is about 3573.2668526154. The cubic root of 12768236 is about 233.7277619040.

The spelling of 12768236 in words is "twelve million, seven hundred sixty-eight thousand, two hundred thirty-six".

Divisors: 1 2 4 13 26 29 52 58 116 377 754 1508 8467 16934 33868 110071 220142 245543 440284 491086 982172 3192059 6384118 12768236