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12838612 = 223209653
BaseRepresentation
bin110000111110…
…011011010100
3220011021021011
4300332123110
511241313422
61135102004
7214061233
oct60763324
926137234
1012838612
117279926
124371904
132876917
1419c2b1a
1511d9077
hexc3e6d4

12838612 has 6 divisors (see below), whose sum is σ = 22467578. Its totient is φ = 6419304.

The previous prime is 12838601. The next prime is 12838613. The reversal of 12838612 is 21683821.

It can be written as a sum of positive squares in only one way, i.e., 7474756 + 5363856 = 2734^2 + 2316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12838613) 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, 1604823 + ... + 1604830.

Almost surely, 212838612 is an apocalyptic number.

It is an amenable number.

12838612 is a deficient number, since it is larger than the sum of its proper divisors (9628966).

12838612 is a wasteful number, since it uses less digits than its factorization.

12838612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209657 (or 3209655 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 12838612 is about 3583.1008916859. The cubic root of 12838612 is about 234.1563958014.

The spelling of 12838612 in words is "twelve million, eight hundred thirty-eight thousand, six hundred twelve".

Divisors: 1 2 4 3209653 6419306 12838612