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1668335000185 = 5726809530613
BaseRepresentation
bin11000010001110000100…
…000111101101001111001
312220111021010122011111001
4120101300200331221321
5204313222230001220
63314231133005001
7231350616343600
oct30216040755171
95814233564431
101668335000185
1159359a683557
1222b402023761
13c1428429ca9
145aa6812ca37
152d5e595680a
hex1847083da79

1668335000185 has 12 divisors (see below), whose sum is σ = 2328859469988. Its totient is φ = 1144001142816.

The previous prime is 1668335000177. The next prime is 1668335000221. The reversal of 1668335000185 is 5810005338661.

It can be written as a sum of positive squares in 2 ways, for example, as 478804489849 + 1189530510336 = 691957^2 + 1090656^2 .

It is not a de Polignac number, because 1668335000185 - 23 = 1668335000177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3404765062 + ... + 3404765551.

It is an arithmetic number, because the mean of its divisors is an integer number (194071622499).

Almost surely, 21668335000185 is an apocalyptic number.

It is an amenable number.

1668335000185 is a deficient number, since it is larger than the sum of its proper divisors (660524469803).

1668335000185 is an equidigital number, since it uses as much as digits as its factorization.

1668335000185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6809530632 (or 6809530625 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 1668335000185 in words is "one trillion, six hundred sixty-eight billion, three hundred thirty-five million, one hundred eighty-five", and thus it is an aban number.

Divisors: 1 5 7 35 49 245 6809530613 34047653065 47666714291 238333571455 333667000037 1668335000185