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50505061019 = 721030715531
BaseRepresentation
bin101111000010010101…
…100001001010011011
311211100210011221002112
4233002111201022123
51311413243423034
635111322422535
73435363635600
oct570225411233
9154323157075
1050505061019
111a467876956
129956061a4b
1349bb5a75ba
1426318426a7
1514a8dac7ce
hexbc256129b

50505061019 has 6 divisors (see below), whose sum is σ = 58750785324. Its totient is φ = 43290052260.

The previous prime is 50505061001. The next prime is 50505061039. The reversal of 50505061019 is 91016050505.

It is a de Polignac number, because none of the positive numbers 2k-50505061019 is a prime.

It is a super-2 number, since 2×505050610192 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50505061039) 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 5 ways as a sum of consecutive naturals, for example, 515357717 + ... + 515357814.

It is an arithmetic number, because the mean of its divisors is an integer number (9791797554).

Almost surely, 250505061019 is an apocalyptic number.

50505061019 is a deficient number, since it is larger than the sum of its proper divisors (8245724305).

50505061019 is a wasteful number, since it uses less digits than its factorization.

50505061019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030715545 (or 1030715538 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 32.

The spelling of 50505061019 in words is "fifty billion, five hundred five million, sixty-one thousand, nineteen".

Divisors: 1 7 49 1030715531 7215008717 50505061019