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30046812 = 2233137259
BaseRepresentation
bin111001010011…
…1101001011100
32002112112110220
41302213221130
530142444222
62552001340
7513252015
oct162475134
962475426
1030046812
1115a62684
12a090250
1362c03a3
143dc200c
152987b5c
hex1ca7a5c

30046812 has 72 divisors (see below), whose sum is σ = 75640320. Its totient is φ = 9270720.

The previous prime is 30046801. The next prime is 30046859. The reversal of 30046812 is 21864003.

It is a happy number.

It is a super-2 number, since 2×300468122 = 1805621822726688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 509239 + ... + 509297.

It is an arithmetic number, because the mean of its divisors is an integer number (1050560).

Almost surely, 230046812 is an apocalyptic number.

It is an amenable number.

30046812 is an abundant number, since it is smaller than the sum of its proper divisors (45593508).

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

30046812 is a wasteful number, since it uses less digits than its factorization.

30046812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 30046812 is about 5481.4972407181. The cubic root of 30046812 is about 310.8847841256.

The spelling of 30046812 in words is "thirty million, forty-six thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 31 37 59 62 74 93 111 118 124 148 177 186 222 236 354 372 444 708 1147 1369 1829 2183 2294 2738 3441 3658 4107 4366 4588 5476 5487 6549 6882 7316 8214 8732 10974 13098 13764 16428 21948 26196 42439 67673 80771 84878 127317 135346 161542 169756 203019 242313 254634 270692 323084 406038 484626 509268 812076 969252 2503901 5007802 7511703 10015604 15023406 30046812