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164312 = 23192347
BaseRepresentation
bin101000000111011000
322100101122
4220013120
520224222
63304412
71253021
oct500730
9270348
10164312
111024a5
127b108
1359a35
1443c48
1533a42
hex281d8

164312 has 32 divisors (see below), whose sum is σ = 345600. Its totient is φ = 72864.

The previous prime is 164309. The next prime is 164321. The reversal of 164312 is 213461.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3473 + ... + 3519.

It is an arithmetic number, because the mean of its divisors is an integer number (10800).

2164312 is an apocalyptic number.

It is an amenable number.

164312 is an abundant number, since it is smaller than the sum of its proper divisors (181288).

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

164312 is a wasteful number, since it uses less digits than its factorization.

164312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 91 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 164312 is about 405.3541661313. The cubic root of 164312 is about 54.7717260508.

Adding to 164312 its reverse (213461), we get a palindrome (377773).

The spelling of 164312 in words is "one hundred sixty-four thousand, three hundred twelve".

Divisors: 1 2 4 8 19 23 38 46 47 76 92 94 152 184 188 376 437 874 893 1081 1748 1786 2162 3496 3572 4324 7144 8648 20539 41078 82156 164312