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30004042 = 253793583
BaseRepresentation
bin111001001110…
…1001101001010
32002110100210211
41302131031022
530140112132
62551031334
7513013225
oct162351512
962410724
1030004042
1115a33532
12a06b54a
1362a6a93
143db05bc
15297a147
hex1c9d34a

30004042 has 16 divisors (see below), whose sum is σ = 46448640. Its totient is φ = 14528592.

The previous prime is 30004033. The next prime is 30004043. The reversal of 30004042 is 24040003.

It is not an unprimeable number, because it can be changed into a prime (30004043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6583 + ... + 10165.

It is an arithmetic number, because the mean of its divisors is an integer number (2903040).

Almost surely, 230004042 is an apocalyptic number.

30004042 is a deficient number, since it is larger than the sum of its proper divisors (16444598).

30004042 is a wasteful number, since it uses less digits than its factorization.

30004042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3717.

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

The square root of 30004042 is about 5477.5945450535. The cubic root of 30004042 is about 310.7372048951.

Adding to 30004042 its reverse (24040003), we get a palindrome (54044045).

The spelling of 30004042 in words is "thirty million, four thousand, forty-two", and thus it is an eban number.

Divisors: 1 2 53 79 106 158 3583 4187 7166 8374 189899 283057 379798 566114 15002021 30004042