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12318350386 = 29941619573
BaseRepresentation
bin10110111100011101…
…10001110000110010
31011210111011000222111
423132032301300302
5200211444203021
65354200555534
7614155151656
oct133616616062
934714130874
1012318350386
115251429a71
122479482baa
1312140b8c34
1484c00aa66
154c16a68e1
hex2de3b1c32

12318350386 has 8 divisors (see below), whose sum is σ = 18479414124. Its totient is φ = 6158545680.

The previous prime is 12318350381. The next prime is 12318350453. The reversal of 12318350386 is 68305381321.

It can be written as a sum of positive squares in 2 ways, for example, as 9322868025 + 2995482361 = 96555^2 + 54731^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12318350381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289905 + ... + 329668.

Almost surely, 212318350386 is an apocalyptic number.

12318350386 is a deficient number, since it is larger than the sum of its proper divisors (6161063738).

12318350386 is an equidigital number, since it uses as much as digits as its factorization.

12318350386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629516.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 12318350386 in words is "twelve billion, three hundred eighteen million, three hundred fifty thousand, three hundred eighty-six".

Divisors: 1 2 9941 19882 619573 1239146 6159175193 12318350386