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12143212104 = 233505967171
BaseRepresentation
bin10110100111100101…
…01011011001001000
31011100021121002102110
423103302223121020
5144332130241404
65324543102320
7606630412512
oct132362533110
934307532373
1012143212104
115171587a91
12242a8a19a0
1311b6a27c0a
14832a5abb2
154b110db89
hex2d3cab648

12143212104 has 16 divisors (see below), whose sum is σ = 30358030320. Its totient is φ = 4047737360.

The previous prime is 12143212099. The next prime is 12143212117. The reversal of 12143212104 is 40121234121.

12143212104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252983562 + ... + 252983609.

It is an arithmetic number, because the mean of its divisors is an integer number (1897376895).

Almost surely, 212143212104 is an apocalyptic number.

It is an amenable number.

12143212104 is an abundant number, since it is smaller than the sum of its proper divisors (18214818216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12143212104 is a wasteful number, since it uses less digits than its factorization.

12143212104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505967180 (or 505967176 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12143212104 its reverse (40121234121), we get a palindrome (52264446225).

The spelling of 12143212104 in words is "twelve billion, one hundred forty-three million, two hundred twelve thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 24 505967171 1011934342 1517901513 2023868684 3035803026 4047737368 6071606052 12143212104