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2442143 = 11220183
BaseRepresentation
bin1001010100001110011111
311121001222202
421110032133
51111122033
6124202115
726520644
oct11241637
94531882
102442143
111418900
1299933b
13676772
14477dcb
153338e8
hex25439f

2442143 has 6 divisors (see below), whose sum is σ = 2684472. Its totient is φ = 2220020.

The previous prime is 2442133. The next prime is 2442151. The reversal of 2442143 is 3412442.

It is not a de Polignac number, because 2442143 - 210 = 2441119 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 (2442103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9971 + ... + 10212.

It is an arithmetic number, because the mean of its divisors is an integer number (447412).

22442143 is an apocalyptic number.

2442143 is a deficient number, since it is larger than the sum of its proper divisors (242329).

2442143 is a wasteful number, since it uses less digits than its factorization.

2442143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20205 (or 20194 counting only the distinct ones).

The product of its digits is 768, while the sum is 20.

The square root of 2442143 is about 1562.7357422162. The cubic root of 2442143 is about 134.6657115520.

Adding to 2442143 its reverse (3412442), we get a palindrome (5854585).

Subtracting 2442143 from its reverse (3412442), we obtain a cube (970299 = 993).

The spelling of 2442143 in words is "two million, four hundred forty-two thousand, one hundred forty-three".

Divisors: 1 11 121 20183 222013 2442143