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12230230312 = 2323227710433
BaseRepresentation
bin10110110001111101…
…01000000100101000
31011120100100001222001
423120332220010220
5200021414332222
65341332140344
7612035146066
oct133076500450
934510301861
1012230230312
115206712063
122453a676b4
1311cba74891
1484042d036
154b8a9be27
hex2d8fa8128

12230230312 has 48 divisors (see below), whose sum is σ = 24060908340. Its totient is φ = 5827565568.

The previous prime is 12230230303. The next prime is 12230230333. The reversal of 12230230312 is 21303203221.

It can be written as a sum of positive squares in 2 ways, for example, as 12096920196 + 133310116 = 109986^2 + 11546^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12230230312.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1167048 + ... + 1177480.

Almost surely, 212230230312 is an apocalyptic number.

It is an amenable number.

12230230312 is a deficient number, since it is larger than the sum of its proper divisors (11830678028).

12230230312 is a wasteful number, since it uses less digits than its factorization.

12230230312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10762 (or 10735 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12230230312 its reverse (21303203221), we get a palindrome (33533433533).

The spelling of 12230230312 in words is "twelve billion, two hundred thirty million, two hundred thirty thousand, three hundred twelve".

Divisors: 1 2 4 8 23 46 92 184 277 529 554 1058 1108 2116 2216 4232 6371 10433 12742 20866 25484 41732 50968 83464 146533 239959 293066 479918 586132 959836 1172264 1919672 2889941 5519057 5779882 11038114 11559764 22076228 23119528 44152456 66468643 132937286 265874572 531749144 1528778789 3057557578 6115115156 12230230312