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12110105 = 57249429
BaseRepresentation
bin101110001100…
…100100011001
3211210020221102
4232030210121
511100010410
61111321145
7204635300
oct56144431
924706842
1012110105
116921557
1240801b5
132680157
141873437
1510e32a5
hexb8c919

12110105 has 12 divisors (see below), whose sum is σ = 16905060. Its totient is φ = 8303904.

The previous prime is 12110101. The next prime is 12110107. The reversal of 12110105 is 50101121.

It can be written as a sum of positive squares in 2 ways, for example, as 5900041 + 6210064 = 2429^2 + 2492^2 .

It is not a de Polignac number, because 12110105 - 22 = 12110101 is a prime.

It is a super-2 number, since 2×121101052 = 293309286222050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12110101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24470 + ... + 24959.

It is an arithmetic number, because the mean of its divisors is an integer number (1408755).

Almost surely, 212110105 is an apocalyptic number.

It is an amenable number.

12110105 is a deficient number, since it is larger than the sum of its proper divisors (4794955).

12110105 is an equidigital number, since it uses as much as digits as its factorization.

12110105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49448 (or 49441 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 12110105 is about 3479.9576146844. The cubic root of 12110105 is about 229.6409331145.

Adding to 12110105 its reverse (50101121), we get a palindrome (62211226).

The spelling of 12110105 in words is "twelve million, one hundred ten thousand, one hundred five".

Divisors: 1 5 7 35 49 245 49429 247145 346003 1730015 2422021 12110105