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243332241 = 3112971843
BaseRepresentation
bin11101000000011…
…11010010010001
3121221212120002020
432200033102101
5444243112431
640051242053
76013201305
oct1640172221
9557776066
10243332241
1111539a129
12695a9329
133b549799
1424461d05
1516568696
hexe80f491

243332241 has 8 divisors (see below), whose sum is σ = 324734880. Its totient is φ = 162075552.

The previous prime is 243332209. The next prime is 243332251. The reversal of 243332241 is 142233342.

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

It is not a de Polignac number, because 243332241 - 25 = 243332209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243332251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32535 + ... + 39308.

It is an arithmetic number, because the mean of its divisors is an integer number (40591860).

Almost surely, 2243332241 is an apocalyptic number.

It is an amenable number.

243332241 is a deficient number, since it is larger than the sum of its proper divisors (81402639).

243332241 is a wasteful number, since it uses less digits than its factorization.

243332241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72975.

The product of its digits is 3456, while the sum is 24.

The square root of 243332241 is about 15599.1102630887. The cubic root of 243332241 is about 624.3094162182.

Adding to 243332241 its reverse (142233342), we get a palindrome (385565583).

The spelling of 243332241 in words is "two hundred forty-three million, three hundred thirty-two thousand, two hundred forty-one".

Divisors: 1 3 1129 3387 71843 215529 81110747 243332241