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12492085019 = 61204788279
BaseRepresentation
bin10111010001001011…
…00001011100011011
31012020121001200002112
423220211201130123
5201040433210034
65423324422535
7621364653641
oct135045413433
935217050075
1012492085019
115330502407
1225076a7a4b
1312410a80ab
14867113191
154d1a737ce
hex2e896171b

12492085019 has 4 divisors (see below), whose sum is σ = 12696873360. Its totient is φ = 12287296680.

The previous prime is 12492085007. The next prime is 12492085049. The reversal of 12492085019 is 91058029421.

12492085019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12492085019 is a prime.

It is a super-2 number, since 2×124920850192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12492085049) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 102394079 + ... + 102394200.

It is an arithmetic number, because the mean of its divisors is an integer number (3174218340).

Almost surely, 212492085019 is an apocalyptic number.

12492085019 is a deficient number, since it is larger than the sum of its proper divisors (204788341).

12492085019 is an equidigital number, since it uses as much as digits as its factorization.

12492085019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204788340.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 12492085019 in words is "twelve billion, four hundred ninety-two million, eighty-five thousand, nineteen".

Divisors: 1 61 204788279 12492085019