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50531443605 = 3251122920969
BaseRepresentation
bin101111000011111010…
…001010001110010101
311211102121211022012100
4233003322022032111
51311442022143410
635114104112313
73436134120006
oct570372121625
9154377738170
1050531443605
111a480756545
129962a65699
1349c3bb3bb6
14263514d1ad
1514ab36e8c0
hexbc3e8a395

50531443605 has 12 divisors (see below), whose sum is σ = 87587835660. Its totient is φ = 26950103232.

The previous prime is 50531443591. The next prime is 50531443607. The reversal of 50531443605 is 50634413505.

50531443605 is a `hidden beast` number, since 5 + 0 + 5 + 3 + 1 + 4 + 43 + 605 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20752419249 + 29779024356 = 144057^2 + 172566^2 .

It is not a de Polignac number, because 50531443605 - 27 = 50531443477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50531443605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50531443607) by changing a digit.

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, 561460440 + ... + 561460529.

It is an arithmetic number, because the mean of its divisors is an integer number (7298986305).

Almost surely, 250531443605 is an apocalyptic number.

It is an amenable number.

50531443605 is a deficient number, since it is larger than the sum of its proper divisors (37056392055).

50531443605 is a wasteful number, since it uses less digits than its factorization.

50531443605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122920980 (or 1122920977 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 50531443605 in words is "fifty billion, five hundred thirty-one million, four hundred forty-three thousand, six hundred five".

Divisors: 1 3 5 9 15 45 1122920969 3368762907 5614604845 10106288721 16843814535 50531443605