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12906284 = 223226571
BaseRepresentation
bin110001001110…
…111100101100
3220021201002112
4301032330230
511301000114
61140343152
7214462436
oct61167454
926251075
1012906284
117315756
1243a4ab8
13289b671
1419dd656
1511ee13e
hexc4ef2c

12906284 has 6 divisors (see below), whose sum is σ = 22586004. Its totient is φ = 6453140.

The previous prime is 12906269. The next prime is 12906287. The reversal of 12906284 is 48260921.

It is a self number, because there is not a number n which added to its sum of digits gives 12906284.

It is not an unprimeable number, because it can be changed into a prime (12906287) 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 as a sum of consecutive naturals, namely, 1613282 + ... + 1613289.

It is an arithmetic number, because the mean of its divisors is an integer number (3764334).

Almost surely, 212906284 is an apocalyptic number.

It is an amenable number.

12906284 is a deficient number, since it is larger than the sum of its proper divisors (9679720).

12906284 is a wasteful number, since it uses less digits than its factorization.

12906284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226575 (or 3226573 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 12906284 is about 3592.5316978421. The cubic root of 12906284 is about 234.5670858839.

The spelling of 12906284 in words is "twelve million, nine hundred six thousand, two hundred eighty-four".

Divisors: 1 2 4 3226571 6453142 12906284