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243030341 = 1012406241
BaseRepresentation
bin11100111110001…
…01100101000101
3121221022012221202
432133011211011
5444203432331
640040552245
76010503161
oct1637054505
9557265852
10243030341
11115203324
1269482685
133b472248
14243c3ca1
1516508ecb
hexe7c5945

243030341 has 4 divisors (see below), whose sum is σ = 245436684. Its totient is φ = 240624000.

The previous prime is 243030313. The next prime is 243030371. The reversal of 243030341 is 143030342.

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 156000100 + 87030241 = 12490^2 + 9329^2 .

It is a cyclic number.

It is not a de Polignac number, because 243030341 - 210 = 243029317 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 (243030301) 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, 1203020 + ... + 1203221.

It is an arithmetic number, because the mean of its divisors is an integer number (61359171).

Almost surely, 2243030341 is an apocalyptic number.

It is an amenable number.

243030341 is a deficient number, since it is larger than the sum of its proper divisors (2406343).

243030341 is a wasteful number, since it uses less digits than its factorization.

243030341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406342.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 243030341 is about 15589.4304257725. The cubic root of 243030341 is about 624.0511177784.

Adding to 243030341 its reverse (143030342), we get a palindrome (386060683).

Subtracting from 243030341 its reverse (143030342), we obtain a palindrome (99999999).

The spelling of 243030341 in words is "two hundred forty-three million, thirty thousand, three hundred forty-one".

Divisors: 1 101 2406241 243030341