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30033042 = 2313385039
BaseRepresentation
bin111001010010…
…0010010010010
32002111211120220
41302210102102
530142024132
62551413510
7513163614
oct162442222
962454526
1030033042
1115a532a6
12a084296
1362b7040
143dbadb4
152983a2c
hex1ca4492

30033042 has 16 divisors (see below), whose sum is σ = 64686720. Its totient is φ = 9240912.

The previous prime is 30033041. The next prime is 30033061. The reversal of 30033042 is 24033003.

It is a super-2 number, since 2×300330422 = 1803967223547528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30033041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192442 + ... + 192597.

It is an arithmetic number, because the mean of its divisors is an integer number (4042920).

Almost surely, 230033042 is an apocalyptic number.

30033042 is an abundant number, since it is smaller than the sum of its proper divisors (34653678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30033042 is a wasteful number, since it uses less digits than its factorization.

30033042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385057.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 30033042 is about 5480.2410530925. The cubic root of 30033042 is about 310.8372856023.

Adding to 30033042 its reverse (24033003), we get a palindrome (54066045).

The spelling of 30033042 in words is "thirty million, thirty-three thousand, forty-two".

Divisors: 1 2 3 6 13 26 39 78 385039 770078 1155117 2310234 5005507 10011014 15016521 30033042