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12286814 = 26143407
BaseRepresentation
bin101110110111…
…101101011110
3212010020100012
4232313231132
511121134224
61115203222
7206302421
oct56675536
925106305
1012286814
116a322a1
124146512
132712707
1418bb9b8
15112a80e
hexbb7b5e

12286814 has 4 divisors (see below), whose sum is σ = 18430224. Its totient is φ = 6143406.

The previous prime is 12286811. The next prime is 12286817. The reversal of 12286814 is 41868221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12286811) and next prime (12286817).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12286811) by changing a digit.

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 as a sum of consecutive naturals, namely, 3071702 + ... + 3071705.

It is an arithmetic number, because the mean of its divisors is an integer number (4607556).

Almost surely, 212286814 is an apocalyptic number.

12286814 is a deficient number, since it is larger than the sum of its proper divisors (6143410).

12286814 is an equidigital number, since it uses as much as digits as its factorization.

12286814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6143409.

The product of its digits is 6144, while the sum is 32.

The square root of 12286814 is about 3505.2551975569. The cubic root of 12286814 is about 230.7525069305.

The spelling of 12286814 in words is "twelve million, two hundred eighty-six thousand, eight hundred fourteen".

Divisors: 1 2 6143407 12286814