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12342231784 = 233741696729
BaseRepresentation
bin10110111111010011…
…11000001011101000
31011212011002100002201
423133221320023220
5200234102404114
65400412505544
7614565145021
oct133751701350
934764070081
1012342231784
115263960463
12248547b2b4
13121902ac3c
14851265c48
154c3822874
hex2dfa782e8

12342231784 has 16 divisors (see below), whose sum is σ = 23767136100. Its totient is φ = 6004328832.

The previous prime is 12342231767. The next prime is 12342231823. The reversal of 12342231784 is 48713224321.

It can be written as a sum of positive squares in 2 ways, for example, as 9924542884 + 2417688900 = 99622^2 + 49170^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20848069 + ... + 20848660.

Almost surely, 212342231784 is an apocalyptic number.

It is an amenable number.

12342231784 is a deficient number, since it is larger than the sum of its proper divisors (11424904316).

12342231784 is a wasteful number, since it uses less digits than its factorization.

12342231784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41696772 (or 41696768 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The spelling of 12342231784 in words is "twelve billion, three hundred forty-two million, two hundred thirty-one thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 37 74 148 296 41696729 83393458 166786916 333573832 1542778973 3085557946 6171115892 12342231784