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12255041212 = 2229317333271
BaseRepresentation
bin10110110100111010…
…10001011010111100
31011122002000121010021
423122131101122330
5200044242304322
65344020021524
7612456063061
oct133235213274
934562017107
1012255041212
115219718937
1224602318a4
131203c5099b
1484384ac68
154bad4d4c7
hex2da7516bc

12255041212 has 24 divisors (see below), whose sum is σ = 22255904160. Its totient is φ = 5897545920.

The previous prime is 12255041177. The next prime is 12255041233. The reversal of 12255041212 is 21214055221.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 129864 + ... + 203407.

It is an arithmetic number, because the mean of its divisors is an integer number (927329340).

Almost surely, 212255041212 is an apocalyptic number.

It is an amenable number.

12255041212 is a deficient number, since it is larger than the sum of its proper divisors (10000862948).

12255041212 is a wasteful number, since it uses less digits than its factorization.

12255041212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333621 (or 333619 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 12255041212 its reverse (21214055221), we get a palindrome (33469096433).

The spelling of 12255041212 in words is "twelve billion, two hundred fifty-five million, forty-one thousand, two hundred twelve".

Divisors: 1 2 4 29 58 116 317 634 1268 9193 18386 36772 333271 666542 1333084 9664859 19329718 38659436 105646907 211293814 422587628 3063760303 6127520606 12255041212