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50806555045 = 5176111818297
BaseRepresentation
bin101111010100010011…
…101000000110100101
311212010210111102010221
4233110103220012211
51313022434230140
635201252444341
73446014410121
oct572423500645
9155123442127
1050806555045
111a601a80874
129a1b0196b1
134a38ba942c
14265d8c4581
1514c55b414a
hexbd44e81a5

50806555045 has 32 divisors (see below), whose sum is σ = 65675948256. Its totient is φ = 37590835200.

The previous prime is 50806555043. The next prime is 50806555081. The reversal of 50806555045 is 54055560805.

It can be written as a sum of positive squares in 16 ways, for example, as 25735329 + 50780819716 = 5073^2 + 225346^2 .

It is not a de Polignac number, because 50806555045 - 21 = 50806555043 is a prime.

It is a super-2 number, since 2×508065550452 (a number of 22 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 = 50806554992 and 50806555010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50806555043) 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 31 ways as a sum of consecutive naturals, for example, 6119337 + ... + 6127633.

It is an arithmetic number, because the mean of its divisors is an integer number (2052373383).

Almost surely, 250806555045 is an apocalyptic number.

It is an amenable number.

50806555045 is a deficient number, since it is larger than the sum of its proper divisors (14869393211).

50806555045 is a wasteful number, since it uses less digits than its factorization.

50806555045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9561.

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 50806555045 in words is "fifty billion, eight hundred six million, five hundred fifty-five thousand, forty-five".

Divisors: 1 5 17 61 85 305 1037 1181 5185 5905 8297 20077 41485 72041 100385 141049 360205 506117 705245 1224697 2530585 6123485 8603989 9798757 43019945 48993785 166578869 597724177 832894345 2988620885 10161311009 50806555045