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12313242012 = 2231995156299
BaseRepresentation
bin10110111011110110…
…10010100110011100
31011210010112111121110
423131323102212130
5200204142221022
65353455302020
7614063554521
oct133573224634
934703474543
1012313242012
11524955aa75
12247781a910
13121301aa26
1484b47b148
154c0ee800c
hex2dded299c

12313242012 has 24 divisors (see below), whose sum is σ = 28875280000. Its totient is φ = 4083788016.

The previous prime is 12313241971. The next prime is 12313242059. The reversal of 12313242012 is 21024231321.

It is a self number, because there is not a number n which added to its sum of digits gives 12313242012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2575762 + ... + 2580537.

Almost surely, 212313242012 is an apocalyptic number.

12313242012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12313242012 is an abundant number, since it is smaller than the sum of its proper divisors (16562037988).

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

12313242012 is a wasteful number, since it uses less digits than its factorization.

12313242012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5156505 (or 5156503 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12313242012 its reverse (21024231321), we get a palindrome (33337473333).

The spelling of 12313242012 in words is "twelve billion, three hundred thirteen million, two hundred forty-two thousand, twelve".

Divisors: 1 2 3 4 6 12 199 398 597 796 1194 2388 5156299 10312598 15468897 20625196 30937794 61875588 1026103501 2052207002 3078310503 4104414004 6156621006 12313242012