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12304311023 = 192930772739
BaseRepresentation
bin10110111010110010…
…01110001011101111
31011202111201202121002
423131121032023233
5200144400423043
65352540030515
7613624626614
oct133531161357
934674652532
1012304311023
11524450aa94
12247483243b
131211211914
1484a1d450b
154c0331bb8
hex2dd64e2ef

12304311023 has 16 divisors (see below), whose sum is σ = 13442352000. Its totient is φ = 11217945312.

The previous prime is 12304311007. The next prime is 12304311059. The reversal of 12304311023 is 32011340321.

It is a cyclic number.

It is not a de Polignac number, because 12304311023 - 24 = 12304311007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12304310986 and 12304311004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12304311083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132788 + ... + 205526.

It is an arithmetic number, because the mean of its divisors is an integer number (840147000).

Almost surely, 212304311023 is an apocalyptic number.

12304311023 is a deficient number, since it is larger than the sum of its proper divisors (1138040977).

12304311023 is a wasteful number, since it uses less digits than its factorization.

12304311023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73094.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12304311023 its reverse (32011340321), we get a palindrome (44315651344).

The spelling of 12304311023 in words is "twelve billion, three hundred four million, three hundred eleven thousand, twenty-three".

Divisors: 1 19 29 307 551 5833 8903 72739 169157 1382041 2109431 22330873 40079189 424286587 647595317 12304311023