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12054103666 = 211643852121
BaseRepresentation
bin10110011100111101…
…10000011001110010
31011010001220220121221
423032132300121302
5144141322304131
65312041135254
7604466122243
oct131636603162
934101826557
1012054103666
115126255550
122404a8a52a
1311a1428a27
14824ca2cca
154a83ab411
hex2ce7b0672

12054103666 has 16 divisors (see below), whose sum is σ = 19755596448. Its totient is φ = 5470610400.

The previous prime is 12054103627. The next prime is 12054103679. The reversal of 12054103666 is 66630145021.

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, 411915 + ... + 440206.

It is an arithmetic number, because the mean of its divisors is an integer number (1234724778).

Almost surely, 212054103666 is an apocalyptic number.

12054103666 is a deficient number, since it is larger than the sum of its proper divisors (7701492782).

12054103666 is a wasteful number, since it uses less digits than its factorization.

12054103666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852777.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 12054103666 its reverse (66630145021), we get a palindrome (78684248687).

The spelling of 12054103666 in words is "twelve billion, fifty-four million, one hundred three thousand, six hundred sixty-six".

Divisors: 1 2 11 22 643 1286 7073 14146 852121 1704242 9373331 18746662 547913803 1095827606 6027051833 12054103666