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12612406612 = 2213242546281
BaseRepresentation
bin10111011111100001…
…00000110101010100
31012112222110122021211
423233300200311110
5201312234002422
65443303351204
7624355454521
oct135760406524
935488418254
1012612406612
115392413843
12253ba52504
13125ccb54c0
148790b4148
154dc3de577
hex2efc20d54

12612406612 has 12 divisors (see below), whose sum is σ = 23769535636. Its totient is φ = 5821110720.

The previous prime is 12612406579. The next prime is 12612406621. The reversal of 12612406612 is 21660421621.

It is a happy number.

12612406612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5612407056 + 6999999556 = 74916^2 + 83666^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121273089 + ... + 121273192.

Almost surely, 212612406612 is an apocalyptic number.

It is an amenable number.

12612406612 is a deficient number, since it is larger than the sum of its proper divisors (11157129024).

12612406612 is a wasteful number, since it uses less digits than its factorization.

12612406612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242546298 (or 242546296 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 12612406612 in words is "twelve billion, six hundred twelve million, four hundred six thousand, six hundred twelve".

Divisors: 1 2 4 13 26 52 242546281 485092562 970185124 3153101653 6306203306 12612406612