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12423018688 = 26194109667
BaseRepresentation
bin10111001000111100…
…00011100011000000
31012001210002201220021
423210132003203000
5200420243044223
65412420223224
7616565626243
oct134436034300
935053081807
1012423018688
1152a55198a3
1224a853ab14
13122c9a5542
1485bc9525a
154ca97e65d
hex2e47838c0

12423018688 has 14 divisors (see below), whose sum is σ = 24651927836. Its totient is φ = 6211509312.

The previous prime is 12423018683. The next prime is 12423018733. The reversal of 12423018688 is 88681032421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12423018683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97054770 + ... + 97054897.

Almost surely, 212423018688 is an apocalyptic number.

It is an amenable number.

12423018688 is a deficient number, since it is larger than the sum of its proper divisors (12228909148).

12423018688 is an equidigital number, since it uses as much as digits as its factorization.

12423018688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194109679 (or 194109669 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The spelling of 12423018688 in words is "twelve billion, four hundred twenty-three million, eighteen thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 16 32 64 194109667 388219334 776438668 1552877336 3105754672 6211509344 12423018688