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105100423 is a prime number
BaseRepresentation
bin1100100001110…
…11010010000111
321022202122200021
412100323102013
5203401203143
614232400011
72414224141
oct620732207
9238678607
10105100423
115436555a
122b246007
1318a0b1cc
14dd5bc91
159360ced
hex643b487

105100423 has 2 divisors, whose sum is σ = 105100424. Its totient is φ = 105100422.

The previous prime is 105100361. The next prime is 105100427. The reversal of 105100423 is 324001501.

It is a strong prime.

It is an emirp because it is prime and its reverse (324001501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105100423 - 213 = 105092231 is a prime.

It is a super-2 number, since 2×1051004232 = 22092197829557858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105100397 and 105100406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105100427) 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, 52550211 + 52550212.

It is an arithmetic number, because the mean of its divisors is an integer number (52550212).

Almost surely, 2105100423 is an apocalyptic number.

105100423 is a deficient number, since it is larger than the sum of its proper divisors (1).

105100423 is an equidigital number, since it uses as much as digits as its factorization.

105100423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 105100423 is about 10251.8497355355. The cubic root of 105100423 is about 471.9197516904.

Adding to 105100423 its reverse (324001501), we get a palindrome (429101924).

The spelling of 105100423 in words is "one hundred five million, one hundred thousand, four hundred twenty-three".