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11050105869 = 3211210147021
BaseRepresentation
bin10100100101010001…
…10011110000001101
31001112002201112120100
422102220303300031
5140112311341434
65024254041313
7540555231045
oct122250636015
931462645510
1011050105869
114760551100
1221847a9239
13107141bcaa
1476b7d4725
1544a18a699
hex292a33c0d

11050105869 has 18 divisors (see below), whose sum is σ = 17544201038. Its totient is φ = 6697033200.

The previous prime is 11050105867. The next prime is 11050105879. The reversal of 11050105869 is 96850105011.

11050105869 is a `hidden beast` number, since 1 + 10 + 50 + 10 + 586 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7850846025 + 3199259844 = 88605^2 + 56562^2 .

It is not a de Polignac number, because 11050105869 - 21 = 11050105867 is a prime.

It is a super-2 number, since 2×110501058692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11050105867) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5072422 + ... + 5074599.

Almost surely, 211050105869 is an apocalyptic number.

It is an amenable number.

11050105869 is a deficient number, since it is larger than the sum of its proper divisors (6494095169).

11050105869 is a wasteful number, since it uses less digits than its factorization.

11050105869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10147049 (or 10147035 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 36.

The spelling of 11050105869 in words is "eleven billion, fifty million, one hundred five thousand, eight hundred sixty-nine".

Divisors: 1 3 9 11 33 99 121 363 1089 10147021 30441063 91323189 111617231 334851693 1004555079 1227789541 3683368623 11050105869