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205241053 = 479342821
BaseRepresentation
bin11000011101110…
…11101011011101
3112022012022210111
430032323223131
5410020203203
632211010021
75041343263
oct1416735335
9468168714
10205241053
11a5942706
1258899911
13336a0a14
141d388433
151304226d
hexc3bbadd

205241053 has 4 divisors (see below), whose sum is σ = 205288668. Its totient is φ = 205193440.

The previous prime is 205241041. The next prime is 205241089. The reversal of 205241053 is 350142502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350142502 = 2175071251.

It can be written as a sum of positive squares in 2 ways, for example, as 85710564 + 119530489 = 9258^2 + 10933^2 .

It is a cyclic number.

It is not a de Polignac number, because 205241053 - 213 = 205232861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205241453) 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, 16618 + ... + 26203.

It is an arithmetic number, because the mean of its divisors is an integer number (51322167).

Almost surely, 2205241053 is an apocalyptic number.

It is an amenable number.

205241053 is a deficient number, since it is larger than the sum of its proper divisors (47615).

205241053 is an equidigital number, since it uses as much as digits as its factorization.

205241053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47614.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 205241053 is about 14326.2365260385. The cubic root of 205241053 is about 589.8678752308.

Adding to 205241053 its reverse (350142502), we get a palindrome (555383555).

The spelling of 205241053 in words is "two hundred five million, two hundred forty-one thousand, fifty-three".

Divisors: 1 4793 42821 205241053