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12206 = 217359
BaseRepresentation
bin10111110101110
3121202002
42332232
5342311
6132302
750405
oct27656
917662
1012206
119197
127092
13572c
14463c
15393b
hex2fae

12206 has 8 divisors (see below), whose sum is σ = 19440. Its totient is φ = 5728.

The previous prime is 12203. The next prime is 12211. The reversal of 12206 is 60221.

12206 is nontrivially palindromic in base 7.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203) 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, 146 + ... + 213.

It is an arithmetic number, because the mean of its divisors is an integer number (2430).

212206 is an apocalyptic number.

12206 is a deficient number, since it is larger than the sum of its proper divisors (7234).

12206 is a wasteful number, since it uses less digits than its factorization.

12206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 12206 is about 110.4807675571. The cubic root of 12206 is about 23.0245484587.

Adding to 12206 its reverse (60221), we get a palindrome (72427).

The spelling of 12206 in words is "twelve thousand, two hundred six".

Divisors: 1 2 17 34 359 718 6103 12206