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17122423 is a prime number
BaseRepresentation
bin100000101010…
…0010001110111
31012012220112211
41001110101313
513340404143
61410554251
7265352413
oct101242167
935186484
1017122423
11973536a
125898987
133716716
1423b9d43
15178349d
hex1054477

17122423 has 2 divisors, whose sum is σ = 17122424. Its totient is φ = 17122422.

The previous prime is 17122421. The next prime is 17122459. The reversal of 17122423 is 32422171.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 17122423 - 21 = 17122421 is a prime.

Together with 17122421, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 17122394 and 17122403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17122421) 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 as a sum of consecutive naturals, namely, 8561211 + 8561212.

It is an arithmetic number, because the mean of its divisors is an integer number (8561212).

Almost surely, 217122423 is an apocalyptic number.

17122423 is a deficient number, since it is larger than the sum of its proper divisors (1).

17122423 is an equidigital number, since it uses as much as digits as its factorization.

17122423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 22.

The square root of 17122423 is about 4137.9249630703. The cubic root of 17122423 is about 257.7439068917.

Adding to 17122423 its reverse (32422171), we get a palindrome (49544594).

The spelling of 17122423 in words is "seventeen million, one hundred twenty-two thousand, four hundred twenty-three".