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205752963 = 3132329973
BaseRepresentation
bin11000100001110…
…00101010000011
3112100011100000010
430100320222003
5410133043323
632230000003
75045604603
oct1420705203
9470140003
10205752963
11a6162279
1258aa6003
133381ca20
141d47cc03
15130e3c93
hexc438a83

205752963 has 24 divisors (see below), whose sum is σ = 308874832. Its totient is φ = 121099968.

The previous prime is 205752961. The next prime is 205752973. The reversal of 205752963 is 369257502.

It is not a de Polignac number, because 205752963 - 21 = 205752961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205752961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15645 + ... + 25617.

Almost surely, 2205752963 is an apocalyptic number.

205752963 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

205752963 is a deficient number, since it is larger than the sum of its proper divisors (103121869).

205752963 is a wasteful number, since it uses less digits than its factorization.

205752963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10035 (or 10012 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 205752963 is about 14344.0915710964. The cubic root of 205752963 is about 590.3578820773.

The spelling of 205752963 in words is "two hundred five million, seven hundred fifty-two thousand, nine hundred sixty-three".

Divisors: 1 3 13 23 39 69 299 529 897 1587 6877 9973 20631 29919 129649 229379 388947 688137 2981927 5275717 8945781 15827151 68584321 205752963