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205052061 = 32319115559
BaseRepresentation
bin11000011100011…
…01100010011101
3112021211201112210
430032031202131
5404443131221
632202551033
75036625264
oct1416154235
9467751483
10205052061
11a5823715
1258808479
13336359a6
141d3395db
1513006276
hexc38d89d

205052061 has 16 divisors (see below), whose sum is σ = 286801920. Its totient is φ = 130064880.

The previous prime is 205052059. The next prime is 205052101. The reversal of 205052061 is 160250502.

205052061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205052061 - 21 = 205052059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205052761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5400 + ... + 20958.

It is an arithmetic number, because the mean of its divisors is an integer number (17925120).

Almost surely, 2205052061 is an apocalyptic number.

It is an amenable number.

205052061 is a deficient number, since it is larger than the sum of its proper divisors (81749859).

205052061 is a wasteful number, since it uses less digits than its factorization.

205052061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15776.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 205052061 is about 14319.6389968463. The cubic root of 205052061 is about 589.6867637305.

The spelling of 205052061 in words is "two hundred five million, fifty-two thousand, sixty-one".

Divisors: 1 3 23 69 191 573 4393 13179 15559 46677 357857 1073571 2971769 8915307 68350687 205052061