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30682 = 223229
BaseRepresentation
bin111011111011010
31120002101
413133122
51440212
6354014
7155311
oct73732
946071
1030682
1121063
121590a
1310c72
14b278
159157
hex77da

30682 has 12 divisors (see below), whose sum is σ = 49770. Its totient is φ = 14168.

The previous prime is 30677. The next prime is 30689. The reversal of 30682 is 28603.

It can be written as a sum of positive squares in only one way, i.e., 25921 + 4761 = 161^2 + 69^2 .

It is not an unprimeable number, because it can be changed into a prime (30689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1044 + ... + 1072.

230682 is an apocalyptic number.

30682 is a deficient number, since it is larger than the sum of its proper divisors (19088).

30682 is a wasteful number, since it uses less digits than its factorization.

30682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 30682 is about 175.1627814349. The cubic root of 30682 is about 31.3060221752.

The spelling of 30682 in words is "thirty thousand, six hundred eighty-two".

Divisors: 1 2 23 29 46 58 529 667 1058 1334 15341 30682