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30245 = 523263
BaseRepresentation
bin111011000100101
31112111012
413120211
51431440
6352005
7154115
oct73045
945435
1030245
11207a6
1215605
13109c7
14b045
158e65
hex7625

30245 has 8 divisors (see below), whose sum is σ = 38016. Its totient is φ = 23056.

The previous prime is 30241. The next prime is 30253. The reversal of 30245 is 54203.

Adding to 30245 its reverse (54203), we get a palindrome (84448).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30245 - 22 = 30241 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17 + ... + 246.

It is an arithmetic number, because the mean of its divisors is an integer number (4752).

230245 is an apocalyptic number.

It is an amenable number.

30245 is a deficient number, since it is larger than the sum of its proper divisors (7771).

30245 is a wasteful number, since it uses less digits than its factorization.

30245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 30245 is about 173.9108967259. The cubic root of 30245 is about 31.1566816111.

The spelling of 30245 in words is "thirty thousand, two hundred forty-five".

Divisors: 1 5 23 115 263 1315 6049 30245