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204420341 = 827247183
BaseRepresentation
bin11000010111100…
…11010011110101
3112020122121222202
430023303103311
5404312422331
632141234245
75031354446
oct1413632365
9466577882
10204420341
11a5432034
1258562985
13334742a8
141d2132cd
1512e2decb
hexc2f34f5

204420341 has 4 divisors (see below), whose sum is σ = 204668352. Its totient is φ = 204172332.

The previous prime is 204420331. The next prime is 204420353. The reversal of 204420341 is 143024402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 143024402 = 271512201.

It is a cyclic number.

It is not a de Polignac number, because 204420341 - 218 = 204158197 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 (204420331) 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, 122765 + ... + 124418.

It is an arithmetic number, because the mean of its divisors is an integer number (51167088).

Almost surely, 2204420341 is an apocalyptic number.

It is an amenable number.

204420341 is a deficient number, since it is larger than the sum of its proper divisors (248011).

204420341 is an equidigital number, since it uses as much as digits as its factorization.

204420341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248010.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 204420341 is about 14297.5641631713. The cubic root of 204420341 is about 589.0805760075.

Adding to 204420341 its reverse (143024402), we get a palindrome (347444743).

The spelling of 204420341 in words is "two hundred four million, four hundred twenty thousand, three hundred forty-one".

Divisors: 1 827 247183 204420341