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30692 = 227673
BaseRepresentation
bin111011111100100
31120002202
413133210
51440232
6354032
7155324
oct73744
946082
1030692
1121072
1215918
1310c7c
14b284
159162
hex77e4

30692 has 6 divisors (see below), whose sum is σ = 53718. Its totient is φ = 15344.

The previous prime is 30689. The next prime is 30697. The reversal of 30692 is 29603.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27556 + 3136 = 166^2 + 56^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 30692.

It is not an unprimeable number, because it can be changed into a prime (30697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3833 + ... + 3840.

It is an arithmetic number, because the mean of its divisors is an integer number (8953).

230692 is an apocalyptic number.

It is an amenable number.

30692 is a deficient number, since it is larger than the sum of its proper divisors (23026).

30692 is a wasteful number, since it uses less digits than its factorization.

30692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7677 (or 7675 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 30692 is about 175.1913239861. The cubic root of 30692 is about 31.3094229337.

Subtracting from 30692 its reverse (29603), we obtain a square (1089 = 332).

The spelling of 30692 in words is "thirty thousand, six hundred ninety-two".

Divisors: 1 2 4 7673 15346 30692