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204095 = 540819
BaseRepresentation
bin110001110100111111
3101100222002
4301310333
523012340
64212515
71510013
oct616477
9340862
10204095
1112a381
129a13b
1371b88
1454543
1540715
hex31d3f

204095 has 4 divisors (see below), whose sum is σ = 244920. Its totient is φ = 163272.

The previous prime is 204067. The next prime is 204101. The reversal of 204095 is 590402.

204095 is an esthetic number in base 14, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 590402 = 2295201.

It is a cyclic number.

It is not a de Polignac number, because 204095 - 212 = 199999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20405 + ... + 20414.

It is an arithmetic number, because the mean of its divisors is an integer number (61230).

2204095 is an apocalyptic number.

204095 is a deficient number, since it is larger than the sum of its proper divisors (40825).

204095 is an equidigital number, since it uses as much as digits as its factorization.

204095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40824.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 204095 is about 451.7687461523. The cubic root of 204095 is about 58.8767897034.

Adding to 204095 its reverse (590402), we get a palindrome (794497).

The spelling of 204095 in words is "two hundred four thousand, ninety-five".

Divisors: 1 5 40819 204095