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12608462017 = 77893161869
BaseRepresentation
bin10111011111000010…
…11101110011000001
31012112201001020022201
423233201131303001
5201310231241032
65443043033201
7624310105324
oct135741356301
935481036281
1012608462017
11539016a148
12253a66b801
13125c233c18
148787687bb
154dbdb08e7
hex2ef85dcc1

12608462017 has 4 divisors (see below), whose sum is σ = 12608701780. Its totient is φ = 12608222256.

The previous prime is 12608461981. The next prime is 12608462033. The reversal of 12608462017 is 71026480621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9854731441 + 2753730576 = 99271^2 + 52476^2 .

It is a cyclic number.

It is not a de Polignac number, because 12608462017 - 27 = 12608461889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12608462047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3042 + ... + 158827.

It is an arithmetic number, because the mean of its divisors is an integer number (3152175445).

Almost surely, 212608462017 is an apocalyptic number.

It is an amenable number.

12608462017 is a deficient number, since it is larger than the sum of its proper divisors (239763).

12608462017 is an equidigital number, since it uses as much as digits as its factorization.

12608462017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239762.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 12608462017 in words is "twelve billion, six hundred eight million, four hundred sixty-two thousand, seventeen".

Divisors: 1 77893 161869 12608462017