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12164213 = 25148463
BaseRepresentation
bin101110011001…
…110001110101
3211220000011102
4232121301311
511103223323
61112415445
7205252115
oct56316165
924800142
1012164213
116959176
1240a7585
13269b979
141889045
151104328
hexb99c75

12164213 has 4 divisors (see below), whose sum is σ = 12212928. Its totient is φ = 12115500.

The previous prime is 12164179. The next prime is 12164221. The reversal of 12164213 is 31246121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12164213 - 214 = 12147829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12164513) 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, 23981 + ... + 24482.

It is an arithmetic number, because the mean of its divisors is an integer number (3053232).

Almost surely, 212164213 is an apocalyptic number.

It is an amenable number.

12164213 is a deficient number, since it is larger than the sum of its proper divisors (48715).

12164213 is an equidigital number, since it uses as much as digits as its factorization.

12164213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48714.

The product of its digits is 288, while the sum is 20.

The square root of 12164213 is about 3487.7231828229. The cubic root of 12164213 is about 229.9824372223.

The spelling of 12164213 in words is "twelve million, one hundred sixty-four thousand, two hundred thirteen".

Divisors: 1 251 48463 12164213