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105223061 is a prime number
BaseRepresentation
bin1100100010110…
…01001110010101
321022222212220102
412101121032111
5203414114221
614235143445
72415244526
oct621311625
9238885812
10105223061
1154439709
122b2a4b85
1318a51c88
14dd9084d
15938730b
hex6459395

105223061 has 2 divisors, whose sum is σ = 105223062. Its totient is φ = 105223060.

The previous prime is 105223057. The next prime is 105223093. The reversal of 105223061 is 160322501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65772100 + 39450961 = 8110^2 + 6281^2 .

It is a cyclic number.

It is not a de Polignac number, because 105223061 - 22 = 105223057 is a prime.

It is a super-2 number, since 2×1052230612 = 22143785132419442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105223961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52611530 + 52611531.

It is an arithmetic number, because the mean of its divisors is an integer number (52611531).

Almost surely, 2105223061 is an apocalyptic number.

It is an amenable number.

105223061 is a deficient number, since it is larger than the sum of its proper divisors (1).

105223061 is an equidigital number, since it uses as much as digits as its factorization.

105223061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 105223061 is about 10257.8292537944. The cubic root of 105223061 is about 472.1032358812.

Adding to 105223061 its reverse (160322501), we get a palindrome (265545562).

The spelling of 105223061 in words is "one hundred five million, two hundred twenty-three thousand, sixty-one".