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12122550806 = 231195525013
BaseRepresentation
bin10110100101000111…
…10111001000010110
31011021211201101110012
423102203313020112
5144311333111211
65322524200222
7606256660502
oct132243671026
934254641405
1012122550806
115160955933
122423999072
1311b26727b2
1482dddd302
154ae3cbd8b
hex2d28f7216

12122550806 has 8 divisors (see below), whose sum is σ = 18770401344. Its totient is φ = 5865750360.

The previous prime is 12122550799. The next prime is 12122550887. The reversal of 12122550806 is 60805522121.

12122550806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97762445 + ... + 97762568.

It is an arithmetic number, because the mean of its divisors is an integer number (2346300168).

Almost surely, 212122550806 is an apocalyptic number.

12122550806 is a deficient number, since it is larger than the sum of its proper divisors (6647850538).

12122550806 is a wasteful number, since it uses less digits than its factorization.

12122550806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195525046.

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 12122550806 in words is "twelve billion, one hundred twenty-two million, five hundred fifty thousand, eight hundred six".

Divisors: 1 2 31 62 195525013 391050026 6061275403 12122550806