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12144043141 = 18167094161
BaseRepresentation
bin10110100111101011…
…10110010010000101
31011100100011022101121
423103311312102011
5144332333340031
65325012553541
7606640443406
oct132365662205
934310138347
1012144043141
115171aa539a
12242b0228b1
1311b6c59259
14832bd59ad
154b1225011
hex2d3d76485

12144043141 has 4 divisors (see below), whose sum is σ = 12211137484. Its totient is φ = 12076948800.

The previous prime is 12144043139. The next prime is 12144043157. The reversal of 12144043141 is 14134044121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1438002241 + 10706040900 = 37921^2 + 103470^2 .

It is a cyclic number.

It is not a de Polignac number, because 12144043141 - 21 = 12144043139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144043111) 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, 33546900 + ... + 33547261.

It is an arithmetic number, because the mean of its divisors is an integer number (3052784371).

Almost surely, 212144043141 is an apocalyptic number.

It is an amenable number.

12144043141 is a deficient number, since it is larger than the sum of its proper divisors (67094343).

12144043141 is an equidigital number, since it uses as much as digits as its factorization.

12144043141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67094342.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 12144043141 its reverse (14134044121), we get a palindrome (26278087262).

The spelling of 12144043141 in words is "twelve billion, one hundred forty-four million, forty-three thousand, one hundred forty-one".

Divisors: 1 181 67094161 12144043141