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12660074076 = 2231381154321
BaseRepresentation
bin10111100101001100…
…10110011001011100
31012200022011101202110
423302212112121130
5201411434332301
65452125154020
7625504565646
oct136246263134
935608141673
1012660074076
115407311041
1225539bb910
131269b34cc0
14881561896
154e16a80d6
hex2f299665c

12660074076 has 24 divisors (see below), whose sum is σ = 31812494224. Its totient is φ = 3895407360.

The previous prime is 12660074041. The next prime is 12660074083. The reversal of 12660074076 is 67047006621.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 40577005 + ... + 40577316.

Almost surely, 212660074076 is an apocalyptic number.

It is an amenable number.

12660074076 is an abundant number, since it is smaller than the sum of its proper divisors (19152420148).

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

12660074076 is a wasteful number, since it uses less digits than its factorization.

12660074076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81154341 (or 81154339 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The spelling of 12660074076 in words is "twelve billion, six hundred sixty million, seventy-four thousand, seventy-six".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 81154321 162308642 243462963 324617284 486925926 973851852 1055006173 2110012346 3165018519 4220024692 6330037038 12660074076