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204934237 = 1277160481
BaseRepresentation
bin11000011011100…
…00110001011101
3112021121201220221
430031300301131
5404430343422
632200241341
75035624624
oct1415606135
9467551827
10204934237
11a5753142
1258770251
13335c4181
141d3086bb
1512ed13c7
hexc370c5d

204934237 has 4 divisors (see below), whose sum is σ = 205095996. Its totient is φ = 204772480.

The previous prime is 204934193. The next prime is 204934253. The reversal of 204934237 is 732439402.

It is a happy number.

204934237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 732439402 = 2366219701.

It can be written as a sum of positive squares in 2 ways, for example, as 67716441 + 137217796 = 8229^2 + 11714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-204934237 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 (204934267) 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, 78964 + ... + 81517.

It is an arithmetic number, because the mean of its divisors is an integer number (51273999).

Almost surely, 2204934237 is an apocalyptic number.

It is an amenable number.

204934237 is a deficient number, since it is larger than the sum of its proper divisors (161759).

204934237 is a wasteful number, since it uses less digits than its factorization.

204934237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161758.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 204934237 is about 14315.5243354898. The cubic root of 204934237 is about 589.5737963782.

The spelling of 204934237 in words is "two hundred four million, nine hundred thirty-four thousand, two hundred thirty-seven".

Divisors: 1 1277 160481 204934237