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12143032143 = 311367970671
BaseRepresentation
bin10110100111100011…
…11111011101001111
31011100021020221120020
423103301333131033
5144332104012033
65324535153223
7606626033034
oct132361773517
934307227506
1012143032143
115171474860
12242a815813
1311b6994028
14832a1138b
154b10c56b3
hex2d3c7f74f

12143032143 has 8 divisors (see below), whose sum is σ = 17662592256. Its totient is φ = 7359413400.

The previous prime is 12143032133. The next prime is 12143032177. The reversal of 12143032143 is 34123034121.

It is a happy number.

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

It is not a de Polignac number, because 12143032143 - 212 = 12143028047 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143032123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183985303 + ... + 183985368.

It is an arithmetic number, because the mean of its divisors is an integer number (2207824032).

Almost surely, 212143032143 is an apocalyptic number.

12143032143 is a deficient number, since it is larger than the sum of its proper divisors (5519560113).

12143032143 is a wasteful number, since it uses less digits than its factorization.

12143032143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367970685.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12143032143 its reverse (34123034121), we get a palindrome (46266066264).

The spelling of 12143032143 in words is "twelve billion, one hundred forty-three million, thirty-two thousand, one hundred forty-three".

Divisors: 1 3 11 33 367970671 1103912013 4047677381 12143032143