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30042134 = 261246247
BaseRepresentation
bin111001010011…
…0100000010110
32002112022001122
41302212200112
530142322014
62551523542
7513232253
oct162464026
962468048
1030042134
1115a5a111
12a0895b2
1362bb215
143dc042a
15298658e
hex1ca6816

30042134 has 8 divisors (see below), whose sum is σ = 45802128. Its totient is φ = 14774760.

The previous prime is 30042127. The next prime is 30042143. The reversal of 30042134 is 43124003.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123002 + ... + 123245.

It is an arithmetic number, because the mean of its divisors is an integer number (5725266).

Almost surely, 230042134 is an apocalyptic number.

30042134 is a deficient number, since it is larger than the sum of its proper divisors (15759994).

30042134 is a wasteful number, since it uses less digits than its factorization.

30042134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246310.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30042134 is about 5481.0705158755. The cubic root of 30042134 is about 310.8686493634.

Adding to 30042134 its reverse (43124003), we get a palindrome (73166137).

The spelling of 30042134 in words is "thirty million, forty-two thousand, one hundred thirty-four".

Divisors: 1 2 61 122 246247 492494 15021067 30042134