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30329 = 132333

30329 has 4 divisors (see below), whose sum is σ = 32676. Its totient is φ = 27984.

The previous prime is 30323. The next prime is 30341. The reversal of 30329 is 92303.

It can be divided in two parts, 30 and 329, that multiplied together give a triangular number (9870 = T140).

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92303 = 241383.

It can be written as a sum of positive squares in 2 ways, for example, as 7225 + 23104 = 85^2 + 152^2 .

It is a cyclic number.

It is not a de Polignac number, because 30329 - 24 = 30313 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 30329.

It is not an unprimeable number, because it can be changed into a prime (30323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154 + ... + 1179.

It is an arithmetic number, because the mean of its divisors is an integer number (8169).

230329 is an apocalyptic number.

It is an amenable number.

30329 is a deficient number, since it is larger than the sum of its proper divisors (2347).

30329 is a wasteful number, since it uses less digits than its factorization.

30329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 30329 is about 174.1522322567. The cubic root of 30329 is about 31.1854989593.

The spelling of 30329 in words is "thirty thousand, three hundred twenty-nine".

Divisors: 1 13 2333 30329