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12632212 = 227343261
BaseRepresentation
bin110000001100…
…000010010100
3212202210010201
4300030002110
511213212322
61130430244
7212241415
oct60140224
925683121
1012632212
11714884a
124292384
1328039a8
14196b80c
151197d27
hexc0c094

12632212 has 12 divisors (see below), whose sum is σ = 22409716. Its totient is φ = 6229440.

The previous prime is 12632201. The next prime is 12632219. The reversal of 12632212 is 21223621.

It can be written as a sum of positive squares in 2 ways, for example, as 7043716 + 5588496 = 2654^2 + 2364^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12632212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12632219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21339 + ... + 21922.

Almost surely, 212632212 is an apocalyptic number.

It is an amenable number.

12632212 is a deficient number, since it is larger than the sum of its proper divisors (9777504).

12632212 is a wasteful number, since it uses less digits than its factorization.

12632212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43338 (or 43336 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 12632212 is about 3554.1823250925. The cubic root of 12632212 is about 232.8948053694.

Adding to 12632212 its reverse (21223621), we get a palindrome (33855833).

The spelling of 12632212 in words is "twelve million, six hundred thirty-two thousand, two hundred twelve".

Divisors: 1 2 4 73 146 292 43261 86522 173044 3158053 6316106 12632212