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12312303775 = 5213931711177
BaseRepresentation
bin10110111011101111…
…01101100010011111
31011210001202211120221
423131313231202133
5200203422210100
65353423222211
7614052566242
oct133567554237
934701684527
1012312303775
115248a7a072
122477447967
131212a7c965
1484b2b5259
154c0db001a
hex2ddded89f

12312303775 has 24 divisors (see below), whose sum is σ = 15426981360. Its totient is φ = 9747260160.

The previous prime is 12312303761. The next prime is 12312303793. The reversal of 12312303775 is 57730321321.

It is not a de Polignac number, because 12312303775 - 25 = 12312303743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12312303775.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1095987 + ... + 1107163.

It is an arithmetic number, because the mean of its divisors is an integer number (642790890).

Almost surely, 212312303775 is an apocalyptic number.

12312303775 is a deficient number, since it is larger than the sum of its proper divisors (3114677585).

12312303775 is a wasteful number, since it uses less digits than its factorization.

12312303775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11643 (or 11638 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 34.

The spelling of 12312303775 in words is "twelve billion, three hundred twelve million, three hundred three thousand, seven hundred seventy-five".

Divisors: 1 5 25 139 317 695 1585 3475 7925 11177 44063 55885 220315 279425 1101575 1553603 3543109 7768015 17715545 38840075 88577725 492492151 2462460755 12312303775