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12662188206 = 232391754987
BaseRepresentation
bin10111100101011100…
…11010100010101110
31012200110010210210120
423302232122202232
5201413010010311
65452242345410
7625531552413
oct136256324256
935613123716
1012662188206
115408525458
12255465b266
13126a3c5375
1488195210a
154e1974706
hex2f2b9a8ae

12662188206 has 16 divisors (see below), whose sum is σ = 26425436544. Its totient is φ = 4037219384.

The previous prime is 12662188193. The next prime is 12662188207. The reversal of 12662188206 is 60288126621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12662188207) 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 7 ways as a sum of consecutive naturals, for example, 45877356 + ... + 45877631.

It is an arithmetic number, because the mean of its divisors is an integer number (1651589784).

Almost surely, 212662188206 is an apocalyptic number.

12662188206 is an abundant number, since it is smaller than the sum of its proper divisors (13763248338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12662188206 is a wasteful number, since it uses less digits than its factorization.

12662188206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91755015.

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 12662188206 in words is "twelve billion, six hundred sixty-two million, one hundred eighty-eight thousand, two hundred six".

Divisors: 1 2 3 6 23 46 69 138 91754987 183509974 275264961 550529922 2110364701 4220729402 6331094103 12662188206