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164028 = 22313669
BaseRepresentation
bin101000000010111100
322100000010
4220002330
520222103
63303220
71252134
oct500274
9270003
10164028
11102267
127ab10
1359877
1443ac4
1533903
hex280bc

164028 has 12 divisors (see below), whose sum is σ = 382760. Its totient is φ = 54672.

The previous prime is 164023. The next prime is 164039. The reversal of 164028 is 820461.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 163995 and 164013.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 164028.

It is not an unprimeable number, because it can be changed into a prime (164023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6823 + ... + 6846.

2164028 is an apocalyptic number.

It is an amenable number.

164028 is an abundant number, since it is smaller than the sum of its proper divisors (218732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164028 is a wasteful number, since it uses less digits than its factorization.

164028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13676 (or 13674 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 164028 is about 405.0037036868. The cubic root of 164028 is about 54.7401516866.

Adding to 164028 its reverse (820461), we get a palindrome (984489).

The spelling of 164028 in words is "one hundred sixty-four thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 13669 27338 41007 54676 82014 164028