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4142343 = 31380781
BaseRepresentation
bin1111110011010100000111
321210110020010
433303110013
52030023333
6224441303
750131542
oct17632407
97713203
104142343
11237a227
121479233
13b205ba
1479b859
1556c563
hex3f3507

4142343 has 4 divisors (see below), whose sum is σ = 5523128. Its totient is φ = 2761560.

The previous prime is 4142311. The next prime is 4142363. The reversal of 4142343 is 3432414.

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

It is not a de Polignac number, because 4142343 - 25 = 4142311 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4142363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690388 + ... + 690393.

It is an arithmetic number, because the mean of its divisors is an integer number (1380782).

Almost surely, 24142343 is an apocalyptic number.

4142343 is a deficient number, since it is larger than the sum of its proper divisors (1380785).

4142343 is a wasteful number, since it uses less digits than its factorization.

4142343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380784.

The product of its digits is 1152, while the sum is 21.

The square root of 4142343 is about 2035.2746743376. The cubic root of 4142343 is about 160.6011629199.

Adding to 4142343 its reverse (3432414), we get a palindrome (7574757).

The spelling of 4142343 in words is "four million, one hundred forty-two thousand, three hundred forty-three".

Divisors: 1 3 1380781 4142343