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30487985968 = 2411359482527
BaseRepresentation
bin11100011001001110…
…011011111100110000
32220200202112011021111
4130121032123330300
5444414411022333
622001143203104
72126343414316
oct343116337460
986622464244
1030487985968
1111a25745120
125aaa446494
132b4b5019ab
1416931940b6
15bd68bc4cd
hex71939bf30

30487985968 has 40 divisors (see below), whose sum is σ = 64620149760. Its totient is φ = 13819544640.

The previous prime is 30487985953. The next prime is 30487985971. The reversal of 30487985968 is 86958978403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178080 + ... + 304447.

It is an arithmetic number, because the mean of its divisors is an integer number (1615503744).

Almost surely, 230487985968 is an apocalyptic number.

It is an amenable number.

30487985968 is an abundant number, since it is smaller than the sum of its proper divisors (34132163792).

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

30487985968 is a wasteful number, since it uses less digits than its factorization.

30487985968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482905 (or 482899 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 67.

The spelling of 30487985968 in words is "thirty billion, four hundred eighty-seven million, nine hundred eighty-five thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 16 22 44 88 176 359 718 1436 2872 3949 5744 7898 15796 31592 63184 482527 965054 1930108 3860216 5307797 7720432 10615594 21231188 42462376 84924752 173227193 346454386 692908772 1385817544 1905499123 2771635088 3810998246 7621996492 15243992984 30487985968