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52205423931 = 3271127763977
BaseRepresentation
bin110000100111101011…
…111000110100111011
311222202021201022111200
4300213223320310323
51323404042031211
635552143225243
73525461532063
oct604753706473
9158667638450
1052205423931
112015a667761
12a14b5a8223
134bcc9500bb
1427535c03a3
1515582d3b56
hexc27af8d3b

52205423931 has 24 divisors (see below), whose sum is σ = 76530995424. Its totient is φ = 34286017920.

The previous prime is 52205423917. The next prime is 52205423983. The reversal of 52205423931 is 13932450225.

52205423931 is a `hidden beast` number, since 5 + 2 + 20 + 542 + 3 + 93 + 1 = 666.

It is not a de Polignac number, because 52205423931 - 26 = 52205423867 is a prime.

It is a super-2 number, since 2×522054239312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52205427931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 784015 + ... + 847991.

It is an arithmetic number, because the mean of its divisors is an integer number (3188791476).

Almost surely, 252205423931 is an apocalyptic number.

52205423931 is a deficient number, since it is larger than the sum of its proper divisors (24325571493).

52205423931 is a wasteful number, since it uses less digits than its factorization.

52205423931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65331 (or 65328 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 52205423931 in words is "fifty-two billion, two hundred five million, four hundred twenty-three thousand, nine hundred thirty-one".

Divisors: 1 3 9 71 213 639 1277 3831 11493 63977 90667 191931 272001 575793 816003 4542367 13627101 40881303 81698629 245095887 735287661 5800602659 17401807977 52205423931