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12000030000019 = 617312721219049
BaseRepresentation
bin1010111010011111100110…
…0001101000001110010011
31120111012011201112021002021
42232213321201220032103
53033102030140000034
641304423201032311
72345654634011065
oct256477141501623
946435151467067
1012000030000019
113907203105306
121419829925697
136907a0994889
142d6b3998b735
1515c2358996b4
hexae9f9868393

12000030000019 has 16 divisors (see below), whose sum is σ = 12461184179200. Its totient is φ = 11549952207360.

The previous prime is 12000030000011. The next prime is 12000030000037. The reversal of 12000030000019 is 91000003000021.

It is a cyclic number.

It is not a de Polignac number, because 12000030000019 - 23 = 12000030000011 is a prime.

It is a super-2 number, since 2×120000300000192 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000029999957 and 12000030000011.

It is not an unprimeable number, because it can be changed into a prime (12000030000011) 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 15 ways as a sum of consecutive naturals, for example, 10043994 + ... + 11175055.

It is an arithmetic number, because the mean of its divisors is an integer number (778824011200).

Almost surely, 212000030000019 is an apocalyptic number.

12000030000019 is the 2000003-rd hex number.

12000030000019 is a deficient number, since it is larger than the sum of its proper divisors (461154179181).

12000030000019 is a wasteful number, since it uses less digits than its factorization.

12000030000019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21219310.

The product of its (nonzero) digits is 54, while the sum is 16.

The spelling of 12000030000019 in words is "twelve trillion, thirty million, nineteen", and thus it is an aban number and an uban number.

Divisors: 1 61 73 127 4453 7747 9271 565531 21219049 1294361989 1548990577 2694819223 94488425197 164383972603 196721803279 12000030000019