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12122453204 = 226174911853
BaseRepresentation
bin10110100101000110…
…11111010011010100
31011021211112102120022
423102203133103110
5144311322000304
65322522124312
7606256103111
oct132243372324
934254472508
1012122453204
115160899574
122423950698
1311b263a244
1482ddb5908
154ae3acebe
hex2d28df4d4

12122453204 has 12 divisors (see below), whose sum is σ = 21248680404. Its totient is φ = 6051401664.

The previous prime is 12122453191. The next prime is 12122453237. The reversal of 12122453204 is 40235422121.

It can be written as a sum of positive squares in 2 ways, for example, as 317196100 + 11805257104 = 17810^2 + 108652^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2453459 + ... + 2458394.

It is an arithmetic number, because the mean of its divisors is an integer number (1770723367).

Almost surely, 212122453204 is an apocalyptic number.

It is an amenable number.

12122453204 is a deficient number, since it is larger than the sum of its proper divisors (9126227200).

12122453204 is a wasteful number, since it uses less digits than its factorization.

12122453204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4912474 (or 4912472 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 12122453204 its reverse (40235422121), we get a palindrome (52357875325).

The spelling of 12122453204 in words is "twelve billion, one hundred twenty-two million, four hundred fifty-three thousand, two hundred four".

Divisors: 1 2 4 617 1234 2468 4911853 9823706 19647412 3030613301 6061226602 12122453204