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11920064695 = 571130961207
BaseRepresentation
bin10110001100111110…
…11100000010110111
31010202201201000201121
423012133130002313
5143403014032240
65250452204411
7601250610130
oct130637340267
933681630647
1011920064695
115067625040
122388009707
13117c727a26
14811170c87
1549b73104a
hex2c67dc0b7

11920064695 has 16 divisors (see below), whose sum is σ = 17833655808. Its totient is φ = 7430689440.

The previous prime is 11920064687. The next prime is 11920064699. The reversal of 11920064695 is 59646002911.

It is not a de Polignac number, because 11920064695 - 23 = 11920064687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11920064699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15480219 + ... + 15480988.

It is an arithmetic number, because the mean of its divisors is an integer number (1114603488).

Almost surely, 211920064695 is an apocalyptic number.

11920064695 is a deficient number, since it is larger than the sum of its proper divisors (5913591113).

11920064695 is a wasteful number, since it uses less digits than its factorization.

11920064695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30961230.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 11920064695 in words is "eleven billion, nine hundred twenty million, sixty-four thousand, six hundred ninety-five".

Divisors: 1 5 7 11 35 55 77 385 30961207 154806035 216728449 340573277 1083642245 1702866385 2384012939 11920064695