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12230305158 = 2328339718143
BaseRepresentation
bin10110110001111101…
…11010010110000110
31011120100110212122010
423120332322112012
5200021424231113
65341333515050
7612035610231
oct133076722606
934510425563
1012230305158
115206763315
122453aa2a86
1311cba9c976
1484044c418
154b8ab41c3
hex2d8fba586

12230305158 has 32 divisors (see below), whose sum is σ = 24610231296. Its totient is φ = 4051906848.

The previous prime is 12230305147. The next prime is 12230305159. The reversal of 12230305158 is 85150303221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230305159) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 665035 + ... + 683177.

It is an arithmetic number, because the mean of its divisors is an integer number (769069728).

Almost surely, 212230305158 is an apocalyptic number.

12230305158 is an abundant number, since it is smaller than the sum of its proper divisors (12379926138).

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

12230305158 is a wasteful number, since it uses less digits than its factorization.

12230305158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18828.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 12230305158 its reverse (85150303221), we get a palindrome (97380608379).

The spelling of 12230305158 in words is "twelve billion, two hundred thirty million, three hundred five thousand, one hundred fifty-eight".

Divisors: 1 2 3 6 283 397 566 794 849 1191 1698 2382 18143 36286 54429 108858 112351 224702 337053 674106 5134469 7202771 10268938 14405542 15403407 21608313 30806814 43216626 2038384193 4076768386 6115152579 12230305158