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17028623093 = 54497312469
BaseRepresentation
bin11111101101111110…
…00010101011110101
31121221202100200102012
433312333002223311
5234333311414333
611453422254005
71141661623316
oct176677025365
947852320365
1017028623093
117249239629
123372a27305
1317b4c05751
14b7781060d
15699e7ce48
hex3f6fc2af5

17028623093 has 4 divisors (see below), whose sum is σ = 17028990060. Its totient is φ = 17028256128.

The previous prime is 17028623069. The next prime is 17028623107. The reversal of 17028623093 is 39032682071.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9018731089 + 8009892004 = 94967^2 + 89498^2 .

It is a cyclic number.

It is not a de Polignac number, because 17028623093 - 28 = 17028622837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 17028623093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17028623033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101738 + ... + 210731.

It is an arithmetic number, because the mean of its divisors is an integer number (4257247515).

Almost surely, 217028623093 is an apocalyptic number.

It is an amenable number.

17028623093 is a deficient number, since it is larger than the sum of its proper divisors (366967).

17028623093 is an equidigital number, since it uses as much as digits as its factorization.

17028623093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366966.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 17028623093 in words is "seventeen billion, twenty-eight million, six hundred twenty-three thousand, ninety-three".

Divisors: 1 54497 312469 17028623093