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12183834221 = 131135182567
BaseRepresentation
bin10110101100011011…
…01000111001101101
31011110010000220111022
423112031220321231
5144423030143341
65332553503525
7610632611366
oct132615507155
934403026438
1012183834221
115192502a89
122440411ba5
1311c227b980
148381d2b6d
154b4984e4b
hex2d6368e6d

12183834221 has 8 divisors (see below), whose sum is σ = 13122367104. Its totient is φ = 11245489200.

The previous prime is 12183834211. The next prime is 12183834233. The reversal of 12183834221 is 12243838121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12183834221 - 214 = 12183817837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12183834211) 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 7 ways as a sum of consecutive naturals, for example, 106280 + ... + 188846.

It is an arithmetic number, because the mean of its divisors is an integer number (1640295888).

Almost surely, 212183834221 is an apocalyptic number.

It is an amenable number.

12183834221 is a deficient number, since it is larger than the sum of its proper divisors (938532883).

12183834221 is a wasteful number, since it uses less digits than its factorization.

12183834221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93931.

The product of its digits is 18432, while the sum is 35.

The spelling of 12183834221 in words is "twelve billion, one hundred eighty-three million, eight hundred thirty-four thousand, two hundred twenty-one".

Divisors: 1 13 11351 82567 147563 1073371 937218017 12183834221