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52878118338 = 2325355427797
BaseRepresentation
bin110001001111110010…
…000000110111000010
312001111011111201202100
4301033302000313002
51331243244241323
640143013331230
73551240406213
oct611762006702
9161434451670
1052878118338
1120475356a51
12a2b8936b16
134ca911ba26
1427b8a8b40a
1515973b0943
hexc4fc80dc2

52878118338 has 24 divisors (see below), whose sum is σ = 116730942588. Its totient is φ = 17293472352.

The previous prime is 52878118291. The next prime is 52878118393. The reversal of 52878118338 is 83381187825.

52878118338 is a `hidden beast` number, since 528 + 7 + 8 + 1 + 1 + 83 + 38 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51235680609 + 1642437729 = 226353^2 + 40527^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27712945 + ... + 27714852.

Almost surely, 252878118338 is an apocalyptic number.

52878118338 is an abundant number, since it is smaller than the sum of its proper divisors (63852824250).

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

52878118338 is a wasteful number, since it uses less digits than its factorization.

52878118338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55427858 (or 55427855 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The spelling of 52878118338 in words is "fifty-two billion, eight hundred seventy-eight million, one hundred eighteen thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 9 18 53 106 159 318 477 954 55427797 110855594 166283391 332566782 498850173 997700346 2937673241 5875346482 8813019723 17626039446 26439059169 52878118338