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50000660011 = 61819682951
BaseRepresentation
bin101110100100010001…
…011000011000101011
311210001122001200222201
4232210101120120223
51304400132110021
634545303401031
73420030411661
oct564421303053
9153048050881
1050000660011
111a229083a15
129835153177
13493ac41273
1425c4862c31
151479975591
hexba445862b

50000660011 has 4 divisors (see below), whose sum is σ = 50820343024. Its totient is φ = 49180977000.

The previous prime is 50000660009. The next prime is 50000660023. The reversal of 50000660011 is 11006600005.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50000660011 - 21 = 50000660009 is a prime.

It is a super-2 number, since 2×500006600112 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50000660051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409841415 + ... + 409841536.

It is an arithmetic number, because the mean of its divisors is an integer number (12705085756).

Almost surely, 250000660011 is an apocalyptic number.

50000660011 is a deficient number, since it is larger than the sum of its proper divisors (819683013).

50000660011 is an equidigital number, since it uses as much as digits as its factorization.

50000660011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819683012.

The product of its (nonzero) digits is 180, while the sum is 19.

The spelling of 50000660011 in words is "fifty billion, six hundred sixty thousand, eleven".

Divisors: 1 61 819682951 50000660011