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17055053387 = 25601666187
BaseRepresentation
bin11111110001000111…
…10111011001001011
31122000121002110221222
433320203313121023
5234412043202022
611500204552255
71142432363501
oct177043673113
948017073858
1017055053387
117262151049
12337b85268b
1317ba52a988
14b7b130671
1569c44e242
hex3f88f764b

17055053387 has 4 divisors (see below), whose sum is σ = 17055745176. Its totient is φ = 17054361600.

The previous prime is 17055053377. The next prime is 17055053399. The reversal of 17055053387 is 78335055071.

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

It is a cyclic number.

It is not a de Polignac number, because 17055053387 - 28 = 17055053131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17055053317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307493 + ... + 358694.

It is an arithmetic number, because the mean of its divisors is an integer number (4263936294).

Almost surely, 217055053387 is an apocalyptic number.

17055053387 is a deficient number, since it is larger than the sum of its proper divisors (691789).

17055053387 is an equidigital number, since it uses as much as digits as its factorization.

17055053387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691788.

The product of its (nonzero) digits is 441000, while the sum is 44.

The spelling of 17055053387 in words is "seventeen billion, fifty-five million, fifty-three thousand, three hundred eighty-seven".

Divisors: 1 25601 666187 17055053387