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20360017 is a prime number
BaseRepresentation
bin100110110101…
…0101101010001
31102022101200201
41031222231101
520203010032
62004215201
7335025436
oct115525521
942271621
1020360017
1110546867
12699a501
1342ab262
1429bdb8d
151bc28e7
hex136ab51

20360017 has 2 divisors, whose sum is σ = 20360018. Its totient is φ = 20360016.

The previous prime is 20359993. The next prime is 20360029. The reversal of 20360017 is 71006302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14676561 + 5683456 = 3831^2 + 2384^2 .

It is a cyclic number.

It is not a de Polignac number, because 20360017 - 223 = 11971409 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20359976 and 20360003.

It is not a weakly prime, because it can be changed into another prime (20360057) 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, 10180008 + 10180009.

It is an arithmetic number, because the mean of its divisors is an integer number (10180009).

Almost surely, 220360017 is an apocalyptic number.

It is an amenable number.

20360017 is a deficient number, since it is larger than the sum of its proper divisors (1).

20360017 is an equidigital number, since it uses as much as digits as its factorization.

20360017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 20360017 is about 4512.2075528504. The cubic root of 20360017 is about 273.0608128869.

Adding to 20360017 its reverse (71006302), we get a palindrome (91366319).

The spelling of 20360017 in words is "twenty million, three hundred sixty thousand, seventeen".