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12318134 = 28969203
BaseRepresentation
bin101110111111…
…010110110110
3212011211022012
4232333112312
511123140014
61120004222
7206462633
oct56772666
925154265
1012318134
116a53884
124160672
132723a4a
1418c918a
151134c3e
hexbbf5b6

12318134 has 8 divisors (see below), whose sum is σ = 18685080. Its totient is φ = 6089776.

The previous prime is 12318109. The next prime is 12318143. The reversal of 12318134 is 43181321.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34424 + ... + 34779.

It is an arithmetic number, because the mean of its divisors is an integer number (2335635).

Almost surely, 212318134 is an apocalyptic number.

12318134 is a deficient number, since it is larger than the sum of its proper divisors (6366946).

12318134 is an equidigital number, since it uses as much as digits as its factorization.

12318134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69294.

The product of its digits is 576, while the sum is 23.

The square root of 12318134 is about 3509.7199318464. The cubic root of 12318134 is about 230.9484089855.

Adding to 12318134 its reverse (43181321), we get a palindrome (55499455).

The spelling of 12318134 in words is "twelve million, three hundred eighteen thousand, one hundred thirty-four".

Divisors: 1 2 89 178 69203 138406 6159067 12318134