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205244768 = 256413899
BaseRepresentation
bin11000011101111…
…00100101100000
3112022012111220002
430032330211200
5410020313033
632211035132
75041360151
oct1416744540
9468174802
10205244768
11a5945483
125889baa8
13336a2611
141d389928
15130433e8
hexc3bc960

205244768 has 12 divisors (see below), whose sum is σ = 404075700. Its totient is φ = 102622368.

The previous prime is 205244747. The next prime is 205244771. The reversal of 205244768 is 867442502.

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 as a sum of consecutive naturals, namely, 3206918 + ... + 3206981.

It is an arithmetic number, because the mean of its divisors is an integer number (33672975).

Almost surely, 2205244768 is an apocalyptic number.

It is an amenable number.

205244768 is a deficient number, since it is larger than the sum of its proper divisors (198830932).

205244768 is an equidigital number, since it uses as much as digits as its factorization.

205244768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6413909 (or 6413901 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 205244768 is about 14326.3661826717. The cubic root of 205244768 is about 589.8714342100.

The spelling of 205244768 in words is "two hundred five million, two hundred forty-four thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 32 6413899 12827798 25655596 51311192 102622384 205244768