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30244 = 227561
BaseRepresentation
bin111011000100100
31112111011
413120210
51431434
6352004
7154114
oct73044
945434
1030244
11207a5
1215604
13109c6
14b044
158e64
hex7624

30244 has 6 divisors (see below), whose sum is σ = 52934. Its totient is φ = 15120.

The previous prime is 30241. The next prime is 30253. The reversal of 30244 is 44203.

30244 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in only one way, i.e., 22500 + 7744 = 150^2 + 88^2 .

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 pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3777 + ... + 3784.

230244 is an apocalyptic number.

It is an amenable number.

30244 is a deficient number, since it is larger than the sum of its proper divisors (22690).

30244 is a wasteful number, since it uses less digits than its factorization.

30244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7565 (or 7563 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 30244 is about 173.9080216666. The cubic root of 30244 is about 31.1563382262.

Adding to 30244 its reverse (44203), we get a palindrome (74447).

The spelling of 30244 in words is "thirty thousand, two hundred forty-four".

Divisors: 1 2 4 7561 15122 30244