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204144 = 2434253
BaseRepresentation
bin110001110101110000
3101101000220
4301311300
523013034
64213040
71510113
oct616560
9341026
10204144
1112a416
129a180
1371bc5
145457a
1540749
hex31d70

204144 has 20 divisors (see below), whose sum is σ = 527496. Its totient is φ = 68032.

The previous prime is 204143. The next prime is 204151. The reversal of 204144 is 441402.

204144 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 not an unprimeable number, because it can be changed into a prime (204143) 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, 2079 + ... + 2174.

2204144 is an apocalyptic number.

204144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

204144 is an abundant number, since it is smaller than the sum of its proper divisors (323352).

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

204144 is a wasteful number, since it uses less digits than its factorization.

204144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4264 (or 4258 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 204144 is about 451.8229741835. The cubic root of 204144 is about 58.8815011235.

Adding to 204144 its reverse (441402), we get a palindrome (645546).

The spelling of 204144 in words is "two hundred four thousand, one hundred forty-four", and thus it is an iban number.

Divisors: 1 2 3 4 6 8 12 16 24 48 4253 8506 12759 17012 25518 34024 51036 68048 102072 204144