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12286906 = 243142871
BaseRepresentation
bin101110110111…
…101110111010
3212010020110121
4232313232322
511121140111
61115203454
7206302612
oct56675672
925106417
1012286906
116a32375
12414658a
132712778
1418bba42
15112a871
hexbb7bba

12286906 has 8 divisors (see below), whose sum is σ = 18859104. Its totient is φ = 6000540.

The previous prime is 12286891. The next prime is 12286919. The reversal of 12286906 is 60968221.

It is a happy number.

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

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, 71350 + ... + 71521.

It is an arithmetic number, because the mean of its divisors is an integer number (2357388).

Almost surely, 212286906 is an apocalyptic number.

12286906 is a deficient number, since it is larger than the sum of its proper divisors (6572198).

12286906 is a wasteful number, since it uses less digits than its factorization.

12286906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142916.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 12286906 is about 3505.2683206853. The cubic root of 12286906 is about 230.7530828644.

The spelling of 12286906 in words is "twelve million, two hundred eighty-six thousand, nine hundred six".

Divisors: 1 2 43 86 142871 285742 6143453 12286906