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204530033 = 3139716619
BaseRepresentation
bin11000011000011…
…10000101110001
3112020212012110102
430030032011301
5404324430113
632143442145
75032322321
oct1414160561
9466765412
10204530033
11a54a7494
12585b6355
13334b21b6
141d241281
1512e51758
hexc30e171

204530033 has 8 divisors (see below), whose sum is σ = 211672320. Its totient is φ = 197421840.

The previous prime is 204529987. The next prime is 204530057. The reversal of 204530033 is 330035402.

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 204530033 - 220 = 203481457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204529987 and 204530014.

It is not an unprimeable number, because it can be changed into a prime (204533033) 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, 3998 + ... + 20616.

It is an arithmetic number, because the mean of its divisors is an integer number (26459040).

Almost surely, 2204530033 is an apocalyptic number.

It is an amenable number.

204530033 is a deficient number, since it is larger than the sum of its proper divisors (7142287).

204530033 is a wasteful number, since it uses less digits than its factorization.

204530033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17047.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 204530033 is about 14301.3996867440. The cubic root of 204530033 is about 589.1859240887.

Adding to 204530033 its reverse (330035402), we get a palindrome (534565435).

The spelling of 204530033 in words is "two hundred four million, five hundred thirty thousand, thirty-three".

Divisors: 1 31 397 12307 16619 515189 6597743 204530033