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30164 = 227541
BaseRepresentation
bin111010111010100
31112101012
413113110
51431124
6351352
7153641
oct72724
945335
1030164
1120732
1215558
1310964
14adc8
158e0e
hex75d4

30164 has 6 divisors (see below), whose sum is σ = 52794. Its totient is φ = 15080.

The previous prime is 30161. The next prime is 30169. The reversal of 30164 is 46103.

It can be written as a sum of positive squares in only one way, i.e., 20164 + 10000 = 142^2 + 100^2 .

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3767 + ... + 3774.

It is an arithmetic number, because the mean of its divisors is an integer number (8799).

230164 is an apocalyptic number.

It is an amenable number.

30164 is a deficient number, since it is larger than the sum of its proper divisors (22630).

30164 is a wasteful number, since it uses less digits than its factorization.

30164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7545 (or 7543 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30164 is about 173.6778627229. The cubic root of 30164 is about 31.1288428775.

Adding to 30164 its reverse (46103), we get a palindrome (76267).

The spelling of 30164 in words is "thirty thousand, one hundred sixty-four".

Divisors: 1 2 4 7541 15082 30164