Search a number
-
+
164395 = 5721161
BaseRepresentation
bin101000001000101011
322100111201
4220020223
520230040
63305031
71253200
oct501053
9270451
10164395
11102570
127b177
1359a9a
1443ca7
1533a9a
hex2822b

164395 has 24 divisors (see below), whose sum is σ = 254448. Its totient is φ = 100800.

The previous prime is 164387. The next prime is 164413. The reversal of 164395 is 593461.

164395 = 73 + 83 + ... + 283.

It is not a de Polignac number, because 164395 - 23 = 164387 is a prime.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 2665 + ... + 2725.

It is an arithmetic number, because the mean of its divisors is an integer number (10602).

2164395 is an apocalyptic number.

164395 is a deficient number, since it is larger than the sum of its proper divisors (90053).

164395 is a wasteful number, since it uses less digits than its factorization.

164395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 84 counting only the distinct ones).

The product of its digits is 3240, while the sum is 28.

The square root of 164395 is about 405.4565328121. The cubic root of 164395 is about 54.7809468990.

The spelling of 164395 in words is "one hundred sixty-four thousand, three hundred ninety-five".

Divisors: 1 5 7 11 35 49 55 61 77 245 305 385 427 539 671 2135 2695 2989 3355 4697 14945 23485 32879 164395