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12904026 = 232150671
BaseRepresentation
bin110001001110…
…011001011010
3220021120222220
4301032121122
511300412101
61140324510
7214453032
oct61163132
926246886
1012904026
117313a93
1243a3736
13289a625
1419dc8c2
1511ed636
hexc4e65a

12904026 has 8 divisors (see below), whose sum is σ = 25808064. Its totient is φ = 4301340.

The previous prime is 12903977. The next prime is 12904027. The reversal of 12904026 is 62040921.

12904026 is digitally balanced in base 2, 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.

12904026 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 12903987 and 12904005.

It is not an unprimeable number, because it can be changed into a prime (12904027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075330 + ... + 1075341.

It is an arithmetic number, because the mean of its divisors is an integer number (3226008).

Almost surely, 212904026 is an apocalyptic number.

12904026 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12904026 is a wasteful number, since it uses less digits than its factorization.

12904026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150676.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12904026 is about 3592.2174210368. The cubic root of 12904026 is about 234.5534056392.

Adding to 12904026 its reverse (62040921), we get a palindrome (74944947).

The spelling of 12904026 in words is "twelve million, nine hundred four thousand, twenty-six".

Divisors: 1 2 3 6 2150671 4301342 6452013 12904026