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51829348825 = 5217297335737
BaseRepresentation
bin110000010001010001…
…010001100111011001
311221210002001201110001
4300101101101213121
51322121303130300
635450550453001
73513244124152
oct602121214731
9157702051401
1051829348825
111aa87352991
12a065664161
134b6ca67557
142719686929
15153529916a
hexc114519d9

51829348825 has 48 divisors (see below), whose sum is σ = 70503724080. Its totient is φ = 37620817920.

The previous prime is 51829348763. The next prime is 51829348829. The reversal of 51829348825 is 52884392815.

It can be written as a sum of positive squares in 24 ways, for example, as 26392926681 + 25436422144 = 162459^2 + 159488^2 .

It is a de Polignac number, because none of the positive numbers 2k-51829348825 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51829348829) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9031357 + ... + 9037093.

It is an arithmetic number, because the mean of its divisors is an integer number (1468827585).

Almost surely, 251829348825 is an apocalyptic number.

It is an amenable number.

51829348825 is a deficient number, since it is larger than the sum of its proper divisors (18674375255).

51829348825 is a wasteful number, since it uses less digits than its factorization.

51829348825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6526 (or 6521 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 55.

The spelling of 51829348825 in words is "fifty-one billion, eight hundred twenty-nine million, three hundred forty-eight thousand, eight hundred twenty-five".

Divisors: 1 5 17 25 29 85 145 425 493 725 733 2465 3665 5737 12325 12461 18325 21257 28685 62305 97529 106285 143425 166373 311525 361369 487645 531425 831865 1806845 2438225 2828341 4159325 4205221 9034225 14141705 21026105 70708525 71488757 105130525 121951409 357443785 609757045 1787218925 2073173953 3048785225 10365869765 51829348825