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30082 = 213289
BaseRepresentation
bin111010110000010
31112021011
413112002
51430312
6351134
7153463
oct72602
945234
1030082
1120668
12154aa
1310900
158da7
hex7582

30082 has 12 divisors (see below), whose sum is σ = 49410. Its totient is φ = 13728.

The previous prime is 30071. The next prime is 30089. The reversal of 30082 is 28003.

It can be written as a sum of positive squares in 3 ways, for example, as 10201 + 19881 = 101^2 + 141^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (30089) by changing a digit.

30082 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 5 ways as a sum of consecutive naturals, for example, 294 + ... + 382.

230082 is an apocalyptic number.

30082 is a deficient number, since it is larger than the sum of its proper divisors (19328).

30082 is a wasteful number, since it uses less digits than its factorization.

30082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30082 is about 173.4416328336. The cubic root of 30082 is about 31.1006096454.

Adding to 30082 its reverse (28003), we get a palindrome (58085).

The spelling of 30082 in words is "thirty thousand, eighty-two".

Divisors: 1 2 13 26 89 169 178 338 1157 2314 15041 30082