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243041341 = 1721141221
BaseRepresentation
bin11100111110010…
…00010000111101
3121221022210001011
432133020100331
5444204310331
640041115221
76010550224
oct1637102075
9557283034
10243041341
11115210614
1269488b11
133b47725a
14243c7cbb
151650c3b1
hexe7c843d

243041341 has 4 divisors (see below), whose sum is σ = 243184284. Its totient is φ = 242898400.

The previous prime is 243041339. The next prime is 243041353. The reversal of 243041341 is 143140342.

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 80478841 + 162562500 = 8971^2 + 12750^2 .

It is a cyclic number.

It is not a de Polignac number, because 243041341 - 21 = 243041339 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (243041321) 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, 68890 + ... + 72331.

It is an arithmetic number, because the mean of its divisors is an integer number (60796071).

Almost surely, 2243041341 is an apocalyptic number.

It is an amenable number.

243041341 is a deficient number, since it is larger than the sum of its proper divisors (142943).

243041341 is a wasteful number, since it uses less digits than its factorization.

243041341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142942.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 243041341 is about 15589.7832249201. The cubic root of 243041341 is about 624.0605328700.

Adding to 243041341 its reverse (143140342), we get a palindrome (386181683).

Subtracting from 243041341 its reverse (143140342), we obtain a palindrome (99900999).

The spelling of 243041341 in words is "two hundred forty-three million, forty-one thousand, three hundred forty-one".

Divisors: 1 1721 141221 243041341