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12662581206 = 23111711285723
BaseRepresentation
bin10111100101011111…
…11010011111010110
31012200110212202220010
423302233322133112
5201413110044311
65452255021050
7625535110242
oct136257723726
935613782803
1012662581206
115408773750
12255480a786
13126a502202
14881a15422
154e1a00da6
hex2f2bfa7d6

12662581206 has 32 divisors (see below), whose sum is σ = 29252596608. Its totient is φ = 3611431040.

The previous prime is 12662581201. The next prime is 12662581213. The reversal of 12662581206 is 60218526621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12662581201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5641740 + ... + 5643983.

It is an arithmetic number, because the mean of its divisors is an integer number (914143644).

Almost surely, 212662581206 is an apocalyptic number.

12662581206 is an abundant number, since it is smaller than the sum of its proper divisors (16590015402).

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

12662581206 is a wasteful number, since it uses less digits than its factorization.

12662581206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11285756.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 12662581206 in words is "twelve billion, six hundred sixty-two million, five hundred eighty-one thousand, two hundred six".

Divisors: 1 2 3 6 11 17 22 33 34 51 66 102 187 374 561 1122 11285723 22571446 33857169 67714338 124142953 191857291 248285906 372428859 383714582 575571873 744857718 1151143746 2110430201 4220860402 6331290603 12662581206