Search a number
-
+
205450041 = 3106964063
BaseRepresentation
bin11000011111011…
…10101100111001
3112022120221110210
430033232230321
5410043400131
632215301333
75043203466
oct1417565471
9468527423
10205450041
11a5a75725
125897a849
1333744b94
141d40066d
1513084146
hexc3eeb39

205450041 has 8 divisors (see below), whose sum is σ = 274193920. Its totient is φ = 136836432.

The previous prime is 205450039. The next prime is 205450061. The reversal of 205450041 is 140054502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 205450041 - 21 = 205450039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205450031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28825 + ... + 35238.

It is an arithmetic number, because the mean of its divisors is an integer number (34274240).

Almost surely, 2205450041 is an apocalyptic number.

It is an amenable number.

205450041 is a deficient number, since it is larger than the sum of its proper divisors (68743879).

205450041 is a wasteful number, since it uses less digits than its factorization.

205450041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65135.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 205450041 is about 14333.5285606860. The cubic root of 205450041 is about 590.0680195447.

The spelling of 205450041 in words is "two hundred five million, four hundred fifty thousand, forty-one".

Divisors: 1 3 1069 3207 64063 192189 68483347 205450041