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204420252 = 223149114329
BaseRepresentation
bin11000010111100…
…11010010011100
3112020122121212110
430023303102130
5404312422002
632141234020
75031354261
oct1413632234
9466577773
10204420252
11a5431a63
1258562910
133347423a
141d213268
1512e2de6c
hexc2f349c

204420252 has 24 divisors (see below), whose sum is σ = 480186000. Its totient is φ = 67682176.

The previous prime is 204420241. The next prime is 204420269. The reversal of 204420252 is 252024402.

204420252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55377 + ... + 58952.

It is an arithmetic number, because the mean of its divisors is an integer number (20007750).

Almost surely, 2204420252 is an apocalyptic number.

It is an amenable number.

204420252 is an abundant number, since it is smaller than the sum of its proper divisors (275765748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204420252 is a wasteful number, since it uses less digits than its factorization.

204420252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114485 (or 114483 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 204420252 is about 14297.5610507527. The cubic root of 204420252 is about 589.0804905166.

Adding to 204420252 its reverse (252024402), we get a palindrome (456444654).

The spelling of 204420252 in words is "two hundred four million, four hundred twenty thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 149 298 447 596 894 1788 114329 228658 342987 457316 685974 1371948 17035021 34070042 51105063 68140084 102210126 204420252