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12208412 = 2219160637
BaseRepresentation
bin101110100100…
…100100011100
3211222020210102
4232210210130
511111132122
61113400232
7205525016
oct56444434
924866712
1012208412
1169893a7
124109078
1326b5b18
14189b1b6
151112492
hexba491c

12208412 has 12 divisors (see below), whose sum is σ = 22489320. Its totient is φ = 5782896.

The previous prime is 12208411. The next prime is 12208421. The reversal of 12208412 is 21480221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12208411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80243 + ... + 80394.

It is an arithmetic number, because the mean of its divisors is an integer number (1874110).

Almost surely, 212208412 is an apocalyptic number.

It is an amenable number.

12208412 is a deficient number, since it is larger than the sum of its proper divisors (10280908).

12208412 is a wasteful number, since it uses less digits than its factorization.

12208412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160660 (or 160658 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 12208412 is about 3494.0538061112. The cubic root of 12208412 is about 230.2606496843.

Adding to 12208412 its reverse (21480221), we get a palindrome (33688633).

The spelling of 12208412 in words is "twelve million, two hundred eight thousand, four hundred twelve".

Divisors: 1 2 4 19 38 76 160637 321274 642548 3052103 6104206 12208412