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12838535 = 54162627
BaseRepresentation
bin110000111110…
…011010000111
3220011021011022
4300332122013
511241313120
61135101355
7214061063
oct60763207
926137138
1012838535
117279866
12437185b
132876888
1419c2aa3
1511d9025
hexc3e687

12838535 has 8 divisors (see below), whose sum is σ = 15782256. Its totient is φ = 10020160.

The previous prime is 12838513. The next prime is 12838537. The reversal of 12838535 is 53583821.

12838535 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12838535 - 28 = 12838279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12838495 and 12838504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12838537) 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 in 7 ways as a sum of consecutive naturals, for example, 31109 + ... + 31518.

It is an arithmetic number, because the mean of its divisors is an integer number (1972782).

Almost surely, 212838535 is an apocalyptic number.

12838535 is a deficient number, since it is larger than the sum of its proper divisors (2943721).

12838535 is an equidigital number, since it uses as much as digits as its factorization.

12838535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62673.

The product of its digits is 28800, while the sum is 35.

The square root of 12838535 is about 3583.0901467867. The cubic root of 12838535 is about 234.1559276802.

The spelling of 12838535 in words is "twelve million, eight hundred thirty-eight thousand, five hundred thirty-five".

Divisors: 1 5 41 205 62627 313135 2567707 12838535