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3242143 = 4097927
BaseRepresentation
bin1100010111100010011111
320002201101101
430113202133
51312222033
6153253531
736362212
oct14274237
96081341
103242143
111914963
1211042a7
13896938
14605779
1544097d
hex31789f

3242143 has 4 divisors (see below), whose sum is σ = 3250480. Its totient is φ = 3233808.

The previous prime is 3242137. The next prime is 3242147. The reversal of 3242143 is 3412423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3412423 = 7487489.

It is a cyclic number.

It is not a de Polignac number, because 3242143 - 25 = 3242111 is a prime.

It is a super-2 number, since 2×32421432 = 21022982464898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3242143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3242147) 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, 3555 + ... + 4372.

It is an arithmetic number, because the mean of its divisors is an integer number (812620).

Almost surely, 23242143 is an apocalyptic number.

3242143 is a deficient number, since it is larger than the sum of its proper divisors (8337).

3242143 is an equidigital number, since it uses as much as digits as its factorization.

3242143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8336.

The product of its digits is 576, while the sum is 19.

The square root of 3242143 is about 1800.5951793782. The cubic root of 3242143 is about 148.0053412974.

Adding to 3242143 its reverse (3412423), we get a palindrome (6654566).

The spelling of 3242143 in words is "three million, two hundred forty-two thousand, one hundred forty-three".

Divisors: 1 409 7927 3242143