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12143042020 = 225607152101
BaseRepresentation
bin10110100111100100…
…00001110111100100
31011100021021110010001
423103302001313210
5144332104321040
65324535311044
7606626103604
oct132362016744
934307243101
1012143042020
11517148121a
12242a81b484
1311b6998685
14832a14c04
154b10c859a
hex2d3c81de4

12143042020 has 12 divisors (see below), whose sum is σ = 25500388284. Its totient is φ = 4857216800.

The previous prime is 12143042003. The next prime is 12143042089. The reversal of 12143042020 is 2024034121.

12143042020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2643810724 + 9499231296 = 51418^2 + 97464^2 .

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, 303576031 + ... + 303576070.

It is an arithmetic number, because the mean of its divisors is an integer number (2125032357).

Almost surely, 212143042020 is an apocalyptic number.

12143042020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12143042020 is an abundant number, since it is smaller than the sum of its proper divisors (13357346264).

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

12143042020 is a wasteful number, since it uses less digits than its factorization.

12143042020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607152110 (or 607152108 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12143042020 its reverse (2024034121), we get a palindrome (14167076141).

The spelling of 12143042020 in words is "twelve billion, one hundred forty-three million, forty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 607152101 1214304202 2428608404 3035760505 6071521010 12143042020