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12164051 = 67181553
BaseRepresentation
bin101110011001…
…101111010011
3211212222221102
4232121233103
511103222201
61112415015
7205251464
oct56315723
924788842
1012164051
116959039
1240a746b
13269b883
141888d6b
15110426b
hexb99bd3

12164051 has 4 divisors (see below), whose sum is σ = 12345672. Its totient is φ = 11982432.

The previous prime is 12164041. The next prime is 12164057. The reversal of 12164051 is 15046121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15046121 = 59255019.

It is a cyclic number.

It is not a de Polignac number, because 12164051 - 218 = 11901907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12164057) 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, 90710 + ... + 90843.

It is an arithmetic number, because the mean of its divisors is an integer number (3086418).

Almost surely, 212164051 is an apocalyptic number.

12164051 is a deficient number, since it is larger than the sum of its proper divisors (181621).

12164051 is an equidigital number, since it uses as much as digits as its factorization.

12164051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181620.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 12164051 is about 3487.6999584253. The cubic root of 12164051 is about 229.9814162679.

The spelling of 12164051 in words is "twelve million, one hundred sixty-four thousand, fifty-one".

Divisors: 1 67 181553 12164051