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30112234205 = 56022446841
BaseRepresentation
bin11100000010110101…
…000011101011011101
32212201120110222202112
4130002311003223131
5443132212443310
621500001403405
72114131524164
oct340265035335
985646428675
1030112234205
1111852631279
125a04639565
132abb700381
1416593023db
15bb38e8705
hex702d43add

30112234205 has 4 divisors (see below), whose sum is σ = 36134681052. Its totient is φ = 24089787360.

The previous prime is 30112234171. The next prime is 30112234211. The reversal of 30112234205 is 50243221103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6751251556 + 23360982649 = 82166^2 + 152843^2 .

It is a de Polignac number, because none of the positive numbers 2k-30112234205 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3011223416 + ... + 3011223425.

It is an arithmetic number, because the mean of its divisors is an integer number (9033670263).

Almost surely, 230112234205 is an apocalyptic number.

It is an amenable number.

30112234205 is a deficient number, since it is larger than the sum of its proper divisors (6022446847).

30112234205 is an equidigital number, since it uses as much as digits as its factorization.

30112234205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6022446846.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 30112234205 its reverse (50243221103), we get a palindrome (80355455308).

The spelling of 30112234205 in words is "thirty billion, one hundred twelve million, two hundred thirty-four thousand, two hundred five".

Divisors: 1 5 6022446841 30112234205