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12214213 = 1161109167
BaseRepresentation
bin101110100101…
…111111000101
3211222112202021
4232211333011
511111323323
61113443141
7205550644
oct56457705
924875667
1012214213
1169927a0
1241104b1
1326b865b
14189d35b
15111405d
hexba5fc5

12214213 has 16 divisors (see below), whose sum is σ = 13749120. Its totient is φ = 10756800.

The previous prime is 12214183. The next prime is 12214243. The reversal of 12214213 is 31241221.

It is an interprime number because it is at equal distance from previous prime (12214183) and next prime (12214243).

It is a cyclic number.

It is not a de Polignac number, because 12214213 - 213 = 12206021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12214243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73056 + ... + 73222.

It is an arithmetic number, because the mean of its divisors is an integer number (859320).

Almost surely, 212214213 is an apocalyptic number.

It is an amenable number.

12214213 is a deficient number, since it is larger than the sum of its proper divisors (1534907).

12214213 is a wasteful number, since it uses less digits than its factorization.

12214213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348.

The product of its digits is 96, while the sum is 16.

The square root of 12214213 is about 3494.8838321180. The cubic root of 12214213 is about 230.2971144464.

Adding to 12214213 its reverse (31241221), we get a palindrome (43455434).

The spelling of 12214213 in words is "twelve million, two hundred fourteen thousand, two hundred thirteen".

Divisors: 1 11 61 109 167 671 1199 1837 6649 10187 18203 73139 112057 200233 1110383 12214213