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12838433 = 193171307
BaseRepresentation
bin110000111110…
…011000100001
3220011021000112
4300332120201
511241312213
61135101105
7214060556
oct60763041
926137015
1012838433
117279783
124371795
13287680a
1419c2a2d
1511d8ea8
hexc3e621

12838433 has 16 divisors (see below), whose sum is σ = 14192640. Its totient is φ = 11566800.

The previous prime is 12838429. The next prime is 12838477. The reversal of 12838433 is 33483821.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12838433 - 22 = 12838429 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12838433.

It is not an unprimeable number, because it can be changed into a prime (12838493) 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 15 ways as a sum of consecutive naturals, for example, 41666 + ... + 41972.

It is an arithmetic number, because the mean of its divisors is an integer number (887040).

Almost surely, 212838433 is an apocalyptic number.

It is an amenable number.

12838433 is a deficient number, since it is larger than the sum of its proper divisors (1354207).

12838433 is a wasteful number, since it uses less digits than its factorization.

12838433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428.

The product of its digits is 13824, while the sum is 32.

The square root of 12838433 is about 3583.0759132343. The cubic root of 12838433 is about 234.1553075688.

The spelling of 12838433 in words is "twelve million, eight hundred thirty-eight thousand, four hundred thirty-three".

Divisors: 1 19 31 71 307 589 1349 2201 5833 9517 21797 41819 180823 414143 675707 12838433