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12274834161 = 319327178229
BaseRepresentation
bin10110110111010001…
…10001101011110001
31011200110021011221110
423123220301223301
5200114324143121
65350004143533
7613116240342
oct133350615361
934613234843
1012274834161
115229907647
122466997ba9
131208090aa5
148463200c9
154bc95cd76
hex2dba31af1

12274834161 has 16 divisors (see below), whose sum is σ = 16512162560. Its totient is φ = 8110679040.

The previous prime is 12274834127. The next prime is 12274834171. The reversal of 12274834161 is 16143847221.

It is not a de Polignac number, because 12274834161 - 214 = 12274817777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12274834171) 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 15 ways as a sum of consecutive naturals, for example, 117795 + ... + 196023.

It is an arithmetic number, because the mean of its divisors is an integer number (1032010160).

Almost surely, 212274834161 is an apocalyptic number.

It is an amenable number.

12274834161 is a deficient number, since it is larger than the sum of its proper divisors (4237328399).

12274834161 is a wasteful number, since it uses less digits than its factorization.

12274834161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78696.

The product of its digits is 64512, while the sum is 39.

The spelling of 12274834161 in words is "twelve billion, two hundred seventy-four million, eight hundred thirty-four thousand, one hundred sixty-one".

Divisors: 1 3 193 271 579 813 52303 78229 156909 234687 15098197 21200059 45294591 63600177 4091611387 12274834161