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18423376775 = 522557288203
BaseRepresentation
bin10001001010000111…
…100110101110000111
31202112221211111202222
4101022013212232013
5300212341024100
612244044522555
71221356055506
oct211207465607
952487744688
1018423376775
1178a4574721
1236a1b5045b
131977b6829b
14c6ab5883d
1572c638485
hex44a1e6b87

18423376775 has 12 divisors (see below), whose sum is σ = 22854000792. Its totient is φ = 14732886240.

The previous prime is 18423376753. The next prime is 18423376819. The reversal of 18423376775 is 57767332481.

It is not a de Polignac number, because 18423376775 - 212 = 18423372679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80177 + ... + 208026.

It is an arithmetic number, because the mean of its divisors is an integer number (1904500066).

Almost surely, 218423376775 is an apocalyptic number.

18423376775 is a deficient number, since it is larger than the sum of its proper divisors (4430624017).

18423376775 is a wasteful number, since it uses less digits than its factorization.

18423376775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290770 (or 290765 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 53.

The spelling of 18423376775 in words is "eighteen billion, four hundred twenty-three million, three hundred seventy-six thousand, seven hundred seventy-five".

Divisors: 1 5 25 2557 12785 63925 288203 1441015 7205075 736935071 3684675355 18423376775