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243044341 = 2297731373
BaseRepresentation
bin11100111110010…
…00111111110101
3121221022221011021
432133020333311
5444204404331
640041141141
76010562041
oct1637107765
9557287137
10243044341
111152128a1
126948a7b1
133b478727
14243c9021
151650d211
hexe7c8ff5

243044341 has 8 divisors (see below), whose sum is σ = 244599480. Its totient is φ = 241493952.

The previous prime is 243044339. The next prime is 243044377. The reversal of 243044341 is 143440342.

It can be written as a sum of positive squares in 4 ways, for example, as 107205316 + 135839025 = 10354^2 + 11655^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243044341 - 21 = 243044339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243044311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176331 + ... + 177703.

It is an arithmetic number, because the mean of its divisors is an integer number (30574935).

Almost surely, 2243044341 is an apocalyptic number.

It is an amenable number.

243044341 is a deficient number, since it is larger than the sum of its proper divisors (1555139).

243044341 is a wasteful number, since it uses less digits than its factorization.

243044341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 243044341 is about 15589.8794414838. The cubic root of 243044341 is about 624.0631005729.

Adding to 243044341 its reverse (143440342), we get a palindrome (386484683).

The spelling of 243044341 in words is "two hundred forty-three million, forty-four thousand, three hundred forty-one".

Divisors: 1 229 773 1373 177017 314417 1061329 243044341