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52010220242 = 2131212312
BaseRepresentation
bin110000011100000011…
…001111101011010010
311222020200101221101102
4300130003033223102
51323004104021432
635520531304402
73520601402111
oct603403175322
9158220357342
1052010220242
112006a4602a2
12a0b614b102
134b9b384c66
1427356c9c78
1515460c5962
hexc1c0cfad2

52010220242 has 18 divisors (see below), whose sum is σ = 78679328247. Its totient is φ = 25785633900.

The previous prime is 52010220193. The next prime is 52010220253. The reversal of 52010220242 is 24202201025.

It can be written as a sum of positive squares in only one way, i.e., 26005110121 + 26005110121 = 161261^2 + 161261^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=161261.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 42249767 + ... + 42250997.

Almost surely, 252010220242 is an apocalyptic number.

52010220242 is a deficient number, since it is larger than the sum of its proper divisors (26669108005).

52010220242 is an frugal number, since it uses more digits than its factorization.

52010220242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726 (or 1364 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 52010220242 its reverse (24202201025), we get a palindrome (76212421267).

The spelling of 52010220242 in words is "fifty-two billion, ten million, two hundred twenty thousand, two hundred forty-two".

Divisors: 1 2 131 262 1231 2462 17161 34322 161261 322522 1515361 3030722 21125191 42250382 198512291 397024582 26005110121 52010220242