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12255234105 = 351794564333
BaseRepresentation
bin10110110100111100…
…00000100000111001
31011122002101101201110
423122132000200321
5200044314442410
65344024110533
7612460525332
oct133236004071
934562341643
1012255234105
11521983a854
122460305449
131203cba71a
1484389b289
154bad8a720
hex2da780839

12255234105 has 16 divisors (see below), whose sum is σ = 19717922880. Its totient is φ = 6499608768.

The previous prime is 12255234071. The next prime is 12255234119. The reversal of 12255234105 is 50143255221.

It is not a de Polignac number, because 12255234105 - 29 = 12255233593 is a prime.

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, 2279482 + ... + 2284851.

It is an arithmetic number, because the mean of its divisors is an integer number (1232370180).

Almost surely, 212255234105 is an apocalyptic number.

12255234105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12255234105 is a deficient number, since it is larger than the sum of its proper divisors (7462688775).

12255234105 is a wasteful number, since it uses less digits than its factorization.

12255234105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564520.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 12255234105 its reverse (50143255221), we get a palindrome (62398489326).

The spelling of 12255234105 in words is "twelve billion, two hundred fifty-five million, two hundred thirty-four thousand, one hundred five".

Divisors: 1 3 5 15 179 537 895 2685 4564333 13692999 22821665 68464995 817015607 2451046821 4085078035 12255234105