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50868038221 = 7211132558431
BaseRepresentation
bin101111010111111110…
…001010101001001101
311212022002012002012121
4233113332022221031
51313134204210341
635211330332541
73450362122300
oct572776125115
9155262162177
1050868038221
111a633755010
129a3772a151
134a48855500
142667b2ab37
1514cabab4d1
hexbd7f8aa4d

50868038221 has 36 divisors (see below), whose sum is σ = 69900050304. Its totient is φ = 36588333600.

The previous prime is 50868038209. The next prime is 50868038227. The reversal of 50868038221 is 12283086805.

It is not a de Polignac number, because 50868038221 - 25 = 50868038189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50868038227) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 188125 + ... + 370306.

It is an arithmetic number, because the mean of its divisors is an integer number (1941668064).

Almost surely, 250868038221 is an apocalyptic number.

It is an amenable number.

50868038221 is a deficient number, since it is larger than the sum of its proper divisors (19032012083).

50868038221 is a wasteful number, since it uses less digits than its factorization.

50868038221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558482 (or 558462 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 50868038221 in words is "fifty billion, eight hundred sixty-eight million, thirty-eight thousand, two hundred twenty-one".

Divisors: 1 7 11 13 49 77 91 143 169 539 637 1001 1183 1859 7007 8281 13013 91091 558431 3909017 6142741 7259603 27363119 42999187 50817221 79855633 94374839 300994309 355720547 558989431 660623873 1038123229 3912926017 4624367111 7266862603 50868038221