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312131112024342 = 231329313657614073
BaseRepresentation
bin100011011111000011011000…
…0000011100011100100010110
31111221011102221212102121220010
41012332012300003203210112
5311402424004134234332
63023503015304021050
7122513504634353322
oct10676066003434426
91457142855377803
10312131112024342
1190500074550836
122b011125a61786
1310521ab7199ca0
14571132546c982
1526143a70519cc
hex11be1b00e3916

312131112024342 has 32 divisors (see below), whose sum is σ = 674576874343008. Its totient is φ = 95712559416576.

The previous prime is 312131112024337. The next prime is 312131112024427. The reversal of 312131112024342 is 243420211131213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6828784183 + ... + 6828829890.

It is an arithmetic number, because the mean of its divisors is an integer number (21080527323219).

Almost surely, 2312131112024342 is an apocalyptic number.

312131112024342 is an abundant number, since it is smaller than the sum of its proper divisors (362445762318666).

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

312131112024342 is a wasteful number, since it uses less digits than its factorization.

312131112024342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13657614384.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 312131112024342 its reverse (243420211131213), we get a palindrome (555551323155555).

The spelling of 312131112024342 in words is "three hundred twelve trillion, one hundred thirty-one billion, one hundred twelve million, twenty-four thousand, three hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 293 586 879 1758 3809 7618 11427 22854 13657614073 27315228146 40972842219 81945684438 177548982949 355097965898 532646948847 1065293897694 4001680923389 8003361846778 12005042770167 24010085540334 52021852004057 104043704008114 156065556012171 312131112024342