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30112120112012 = 22193797031043479
BaseRepresentation
bin1101101100011000001100…
…01110010000001110001100
310221121200122102110120210022
412312030012032100032030
512421324110222041022
6144013152250201312
76225346256540231
oct666140616201614
9127550572416708
1030112120112012
11965a529866754
123463b20123238
1313a5739c493b3
14761611d73788
153734430acc42
hex1b630639038c

30112120112012 has 24 divisors (see below), whose sum is σ = 55469894188800. Its totient is φ = 14263584608016.

The previous prime is 30112120111987. The next prime is 30112120112051. The reversal of 30112120112012 is 21021102121103.

It is a happy number.

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, 28335689 + ... + 29379167.

It is an arithmetic number, because the mean of its divisors is an integer number (2311245591200).

Almost surely, 230112120112012 is an apocalyptic number.

It is an amenable number.

30112120112012 is a deficient number, since it is larger than the sum of its proper divisors (25357774076788).

30112120112012 is a wasteful number, since it uses less digits than its factorization.

30112120112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423205 (or 1423203 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 30112120112012 its reverse (21021102121103), we get a palindrome (51133222233115).

The spelling of 30112120112012 in words is "thirty trillion, one hundred twelve billion, one hundred twenty million, one hundred twelve thousand, twelve".

Divisors: 1 2 4 19 38 76 379703 759406 1043479 1518812 2086958 4173916 7214357 14428714 19826101 28857428 39652202 79304404 396212106737 792424213474 1584848426948 7528030028003 15056060056006 30112120112012