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30042032 = 248212287
BaseRepresentation
bin111001010011…
…0011110110000
32002112021220212
41302212132300
530142321112
62551523252
7513232046
oct162463660
962467825
1030042032
1115a5a029
12a089528
1362bb167
143dc0396
152986522
hex1ca67b0

30042032 has 20 divisors (see below), whose sum is σ = 58302816. Its totient is φ = 14996160.

The previous prime is 30042031. The next prime is 30042037. The reversal of 30042032 is 23024003.

It is a junction number, because it is equal to n+sod(n) for n = 30041998 and 30042016.

It is not an unprimeable number, because it can be changed into a prime (30042031) 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 3 ways as a sum of consecutive naturals, for example, 11993 + ... + 14279.

Almost surely, 230042032 is an apocalyptic number.

It is an amenable number.

30042032 is a deficient number, since it is larger than the sum of its proper divisors (28260784).

30042032 is a wasteful number, since it uses less digits than its factorization.

30042032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116 (or 3110 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30042032 is about 5481.0612111160. The cubic root of 30042032 is about 310.8682975393.

Adding to 30042032 its reverse (23024003), we get a palindrome (53066035).

The spelling of 30042032 in words is "thirty million, forty-two thousand, thirty-two", and thus it is an eban number.

Divisors: 1 2 4 8 16 821 1642 2287 3284 4574 6568 9148 13136 18296 36592 1877627 3755254 7510508 15021016 30042032