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52805030278 = 27111353497663
BaseRepresentation
bin110001001011011011…
…001101000110000110
312001022001222110210011
4301023123031012012
51331121041432103
640131443020434
73546362231410
oct611333150606
9161261873704
1052805030278
11204380768a0
12a29836a71a
134c96c3b760
1427ad0a39b0
151590c74d6d
hexc4b6cd186

52805030278 has 64 divisors (see below), whose sum is σ = 108355387392. Its totient is φ = 18632465280.

The previous prime is 52805030227. The next prime is 52805030287. The reversal of 52805030278 is 87203050825.

It is a self number, because there is not a number n which added to its sum of digits gives 52805030278.

It is a congruent number.

It is an unprimeable number.

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, 142726 + ... + 354937.

It is an arithmetic number, because the mean of its divisors is an integer number (1693052928).

Almost surely, 252805030278 is an apocalyptic number.

52805030278 is an abundant number, since it is smaller than the sum of its proper divisors (55550357114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52805030278 is a wasteful number, since it uses less digits than its factorization.

52805030278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497749.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 52805030278 in words is "fifty-two billion, eight hundred five million, thirty thousand, two hundred seventy-eight".

Divisors: 1 2 7 11 13 14 22 26 53 77 91 106 143 154 182 286 371 583 689 742 1001 1166 1378 2002 4081 4823 7579 8162 9646 15158 53053 106106 497663 995326 3483641 5474293 6469619 6967282 10948586 12939238 26376139 38320051 45287333 52752278 71165809 76640102 90574666 142331618 184632973 290137529 342889807 369265946 498160663 580275058 685779614 996321326 2030962703 2400228649 3771787877 4061925406 4800457298 7543575754 26402515139 52805030278