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30248 = 2319199
BaseRepresentation
bin111011000101000
31112111022
413120220
51431443
6352012
7154121
oct73050
945438
1030248
11207a9
1215608
13109ca
14b048
158e68
hex7628

30248 has 16 divisors (see below), whose sum is σ = 60000. Its totient is φ = 14256.

The previous prime is 30241. The next prime is 30253. The reversal of 30248 is 84203.

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

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 3 ways as a sum of consecutive naturals, for example, 53 + ... + 251.

It is an arithmetic number, because the mean of its divisors is an integer number (3750).

230248 is an apocalyptic number.

30248 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30248 is a deficient number, since it is larger than the sum of its proper divisors (29752).

30248 is a wasteful number, since it uses less digits than its factorization.

30248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 30248 is about 173.9195216185. The cubic root of 30248 is about 31.1577117202.

The spelling of 30248 in words is "thirty thousand, two hundred forty-eight".

Divisors: 1 2 4 8 19 38 76 152 199 398 796 1592 3781 7562 15124 30248