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50105605105 = 521614637261
BaseRepresentation
bin101110101010100001…
…101101101111110001
311210022221112110121001
4232222201231233301
51310104013330410
635003533002001
73422443421233
oct565241555761
9153287473531
1050105605105
111a2823427a6
129864323301
1349568c685a
1425d4780253
151483ca533a
hexbaa86dbf1

50105605105 has 8 divisors (see below), whose sum is σ = 60154562664. Its totient is φ = 40065926400.

The previous prime is 50105605073. The next prime is 50105605127. The reversal of 50105605105 is 50150650105.

It can be written as a sum of positive squares in 4 ways, for example, as 17588860129 + 32516744976 = 132623^2 + 180324^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50105605105 - 25 = 50105605073 is a prime.

It is a super-2 number, since 2×501056051052 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2307826 + ... + 2329435.

It is an arithmetic number, because the mean of its divisors is an integer number (7519320333).

Almost surely, 250105605105 is an apocalyptic number.

It is an amenable number.

50105605105 is a deficient number, since it is larger than the sum of its proper divisors (10048957559).

50105605105 is a wasteful number, since it uses less digits than its factorization.

50105605105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639427.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 50105605105 in words is "fifty billion, one hundred five million, six hundred five thousand, one hundred five".

Divisors: 1 5 2161 10805 4637261 23186305 10021121021 50105605105