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242204443 = 1318631111
BaseRepresentation
bin11100110111110…
…11111100011011
3121212202021000221
432123323330123
5444001020233
640011140511
76000463255
oct1633737433
9555667027
10242204443
11114799868
1269144737
133b243350
142424acd5
15163e442d
hexe6fbf1b

242204443 has 4 divisors (see below), whose sum is σ = 260835568. Its totient is φ = 223573320.

The previous prime is 242204393. The next prime is 242204447. The reversal of 242204443 is 344402242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344402242 = 2172201121.

It is a cyclic number.

It is not a de Polignac number, because 242204443 - 217 = 242073371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242204447) 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, 9315543 + ... + 9315568.

It is an arithmetic number, because the mean of its divisors is an integer number (65208892).

Almost surely, 2242204443 is an apocalyptic number.

242204443 is a deficient number, since it is larger than the sum of its proper divisors (18631125).

242204443 is a wasteful number, since it uses less digits than its factorization.

242204443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18631124.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 242204443 is about 15562.9188457693. The cubic root of 242204443 is about 623.3434043448.

Adding to 242204443 its reverse (344402242), we get a palindrome (586606685).

The spelling of 242204443 in words is "two hundred forty-two million, two hundred four thousand, four hundred forty-three".

Divisors: 1 13 18631111 242204443