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205044053 = 67245677
BaseRepresentation
bin11000011100010…
…11100101010101
3112021211022120012
430032023211111
5404442402203
632202450005
75036563034
oct1416134525
9467738505
10205044053
11a58186a5
1258803905
1333632156
141d33671b
1513003bd8
hexc38b955

205044053 has 6 divisors (see below), whose sum is σ = 208154646. Its totient is φ = 201979272.

The previous prime is 205044023. The next prime is 205044061. The reversal of 205044053 is 350440502.

205044053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 199854769 + 5189284 = 14137^2 + 2278^2 .

It is not a de Polignac number, because 205044053 - 212 = 205039957 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 (205044023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18350 + ... + 27327.

It is an arithmetic number, because the mean of its divisors is an integer number (34692441).

Almost surely, 2205044053 is an apocalyptic number.

It is an amenable number.

205044053 is a deficient number, since it is larger than the sum of its proper divisors (3110593).

205044053 is an frugal number, since it uses more digits than its factorization.

205044053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45811 (or 45744 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 205044053 is about 14319.3593781286. The cubic root of 205044053 is about 589.6790871871.

Adding to 205044053 its reverse (350440502), we get a palindrome (555484555).

The spelling of 205044053 in words is "two hundred five million, forty-four thousand, fifty-three".

Divisors: 1 67 4489 45677 3060359 205044053