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204000485 = 5133138469
BaseRepresentation
bin11000010100011…
…00110011100101
3112012212022001112
430022030303211
5404211003420
632124234405
75024655413
oct1412146345
9465768045
10204000485
11a5175647
125839ba05
1333358160
141d1442b3
1512d998c5
hexc28cce5

204000485 has 8 divisors (see below), whose sum is σ = 263631480. Its totient is φ = 150646464.

The previous prime is 204000479. The next prime is 204000521. The reversal of 204000485 is 584000402.

It can be written as a sum of positive squares in 4 ways, for example, as 12952801 + 191047684 = 3599^2 + 13822^2 .

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 204000485 - 24 = 204000469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204000485.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1569170 + ... + 1569299.

It is an arithmetic number, because the mean of its divisors is an integer number (32953935).

Almost surely, 2204000485 is an apocalyptic number.

It is an amenable number.

204000485 is a deficient number, since it is larger than the sum of its proper divisors (59630995).

204000485 is a wasteful number, since it uses less digits than its factorization.

204000485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138487.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 204000485 is about 14282.8738354716. The cubic root of 204000485 is about 588.6769982045.

Adding to 204000485 its reverse (584000402), we get a palindrome (788000887).

The spelling of 204000485 in words is "two hundred four million, four hundred eighty-five", and thus it is an aban number.

Divisors: 1 5 13 65 3138469 15692345 40800097 204000485