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17320825481 is a prime number
BaseRepresentation
bin10000001000011001…
…101101001010001001
31122201010012002201212
4100020121231022021
5240433112403411
611542421222505
71152140405321
oct201031551211
948633162655
1017320825481
117389177603
123434861a35
13183060327b
14ba4554281
156b594b68b
hex40866d289

17320825481 has 2 divisors, whose sum is σ = 17320825482. Its totient is φ = 17320825480.

The previous prime is 17320825469. The next prime is 17320825573. The reversal of 17320825481 is 18452802371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10923385225 + 6397440256 = 104515^2 + 79984^2 .

It is a cyclic number.

It is not a de Polignac number, because 17320825481 - 210 = 17320824457 is a prime.

It is a super-2 number, since 2×173208254812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (17320825381) 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, 8660412740 + 8660412741.

It is an arithmetic number, because the mean of its divisors is an integer number (8660412741).

Almost surely, 217320825481 is an apocalyptic number.

It is an amenable number.

17320825481 is a deficient number, since it is larger than the sum of its proper divisors (1).

17320825481 is an equidigital number, since it uses as much as digits as its factorization.

17320825481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 17320825481 in words is "seventeen billion, three hundred twenty million, eight hundred twenty-five thousand, four hundred eighty-one".