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12135619466 = 219319358407
BaseRepresentation
bin10110100110101011…
…01101101110001010
31011022202022100021122
423103111231232022
5144323204310331
65324112235242
7606506030525
oct132325555612
934282270248
1012135619466
115168271583
12242823bb22
1311b529a029
14831a41bbc
154b060e17b
hex2d356db8a

12135619466 has 8 divisors (see below), whose sum is σ = 19161504480. Its totient is φ = 5748451308.

The previous prime is 12135619459. The next prime is 12135619469. The reversal of 12135619466 is 66491653121.

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 (12135619469) 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, 159679166 + ... + 159679241.

It is an arithmetic number, because the mean of its divisors is an integer number (2395188060).

Almost surely, 212135619466 is an apocalyptic number.

12135619466 is a deficient number, since it is larger than the sum of its proper divisors (7025885014).

12135619466 is a wasteful number, since it uses less digits than its factorization.

12135619466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319358428.

The product of its digits is 233280, while the sum is 44.

The spelling of 12135619466 in words is "twelve billion, one hundred thirty-five million, six hundred nineteen thousand, four hundred sixty-six".

Divisors: 1 2 19 38 319358407 638716814 6067809733 12135619466