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BaseRepresentation
bin101100111101001
31011120111
411213221
51214032
6254321
7124051
oct54751
934514
1023017
1116325
12113a1
13a627
148561
156c47
hex59e9

23017 has 2 divisors, whose sum is σ = 23018. Its totient is φ = 23016.

The previous prime is 23011. The next prime is 23021. The reversal of 23017 is 71032.

Adding to 23017 its reverse (71032), we get a palindrome (94049).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19881 + 3136 = 141^2 + 56^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23017 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22988 and 23006.

It is not a weakly prime, because it can be changed into another prime (23011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11508 + 11509.

It is an arithmetic number, because the mean of its divisors is an integer number (11509).

223017 is an apocalyptic number.

It is an amenable number.

23017 is a deficient number, since it is larger than the sum of its proper divisors (1).

23017 is an equidigital number, since it uses as much as digits as its factorization.

23017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 23017 is about 151.7135458685. The cubic root of 23017 is about 28.4456747017.

The spelling of 23017 in words is "twenty-three thousand, seventeen", and thus it is an iban number.