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12604668478 = 246313611953
BaseRepresentation
bin10111011110100101…
…11111101000111110
31012112102220111120021
423233102333220332
5201303243342403
65442425442354
7624232625413
oct135722775076
935472814507
1012604668478
115389008a96
1225393403ba
13125b50631c
1487805c10a
154db8b18bd
hex2ef4bfa3e

12604668478 has 8 divisors (see below), whose sum is σ = 18947839968. Its totient is φ = 6288721824.

The previous prime is 12604668463. The next prime is 12604668481. The reversal of 12604668478 is 87486640621.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6805051 + ... + 6806902.

It is an arithmetic number, because the mean of its divisors is an integer number (2368479996).

Almost surely, 212604668478 is an apocalyptic number.

12604668478 is a deficient number, since it is larger than the sum of its proper divisors (6343171490).

12604668478 is a wasteful number, since it uses less digits than its factorization.

12604668478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13612418.

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 12604668478 in words is "twelve billion, six hundred four million, six hundred sixty-eight thousand, four hundred seventy-eight".

Divisors: 1 2 463 926 13611953 27223906 6302334239 12604668478