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12804134 = 27914581
BaseRepresentation
bin110000110110…
…000000100110
3220002111222012
4300312000212
511234213014
61134234222
7213555560
oct60660046
926074865
1012804134
117255a32
124355972
132864015
1419b4330
1511cdc3e
hexc36026

12804134 has 8 divisors (see below), whose sum is σ = 21949968. Its totient is φ = 5487480.

The previous prime is 12804107. The next prime is 12804137. The reversal of 12804134 is 43140821.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12804137) 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, 457277 + ... + 457304.

It is an arithmetic number, because the mean of its divisors is an integer number (2743746).

Almost surely, 212804134 is an apocalyptic number.

12804134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12804134 is a deficient number, since it is larger than the sum of its proper divisors (9145834).

12804134 is an equidigital number, since it uses as much as digits as its factorization.

12804134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914590.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 12804134 is about 3578.2864614226. The cubic root of 12804134 is about 233.9465994492.

Adding to 12804134 its reverse (43140821), we get a palindrome (55944955).

The spelling of 12804134 in words is "twelve million, eight hundred four thousand, one hundred thirty-four".

Divisors: 1 2 7 14 914581 1829162 6402067 12804134