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12660026086 = 226923531647
BaseRepresentation
bin10111100101001100…
…01010101011100110
31012200022001221221001
423302212022223212
5201411431313321
65452124143514
7625504306021
oct136246125346
935608057831
1012660026086
115407288a84
122553997b9a
131269b191c6
1488154c1b8
154e1698c91
hex2f298aae6

12660026086 has 8 divisors (see below), whose sum is σ = 19060634880. Its totient is φ = 6306481128.

The previous prime is 12660026063. The next prime is 12660026087. The reversal of 12660026086 is 68062006621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12660026087) 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, 11765286 + ... + 11766361.

It is an arithmetic number, because the mean of its divisors is an integer number (2382579360).

Almost surely, 212660026086 is an apocalyptic number.

12660026086 is a deficient number, since it is larger than the sum of its proper divisors (6400608794).

12660026086 is a wasteful number, since it uses less digits than its factorization.

12660026086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23531918.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 12660026086 in words is "twelve billion, six hundred sixty million, twenty-six thousand, eighty-six".

Divisors: 1 2 269 538 23531647 47063294 6330013043 12660026086