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204544425 = 352171371171
BaseRepresentation
bin11000011000100…
…01100110101001
3112020212221012110
430030101212221
5404330410200
632144032533
75032412301
oct1414214651
9466787173
10204544425
11a5507288
1258602749
13334b8907
141d246601
1512e55b50
hexc3119a9

204544425 has 48 divisors (see below), whose sum is σ = 360994752. Its totient is φ = 101836800.

The previous prime is 204544393. The next prime is 204544441. The reversal of 204544425 is 524445402.

It is not a de Polignac number, because 204544425 - 25 = 204544393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204544392 and 204544401.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 174090 + ... + 175260.

It is an arithmetic number, because the mean of its divisors is an integer number (7520724).

Almost surely, 2204544425 is an apocalyptic number.

204544425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204544425 is a deficient number, since it is larger than the sum of its proper divisors (156450327).

204544425 is a wasteful number, since it uses less digits than its factorization.

204544425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 204544425 is about 14301.9028454258. The cubic root of 204544425 is about 589.1997433549.

Adding to 204544425 its reverse (524445402), we get a palindrome (728989827).

The spelling of 204544425 in words is "two hundred four million, five hundred forty-four thousand, four hundred twenty-five".

Divisors: 1 3 5 15 17 25 51 75 85 137 255 411 425 685 1171 1275 2055 2329 3425 3513 5855 6987 10275 11645 17565 19907 29275 34935 58225 59721 87825 99535 160427 174675 298605 481281 497675 802135 1493025 2406405 2727259 4010675 8181777 12032025 13636295 40908885 68181475 204544425