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205294 = 2102647
BaseRepresentation
bin110010000111101110
3101102121111
4302013232
523032134
64222234
71513345
oct620756
9342544
10205294
11130271
129a97a
137259b
1454b5c
1540c64
hex321ee

205294 has 4 divisors (see below), whose sum is σ = 307944. Its totient is φ = 102646.

The previous prime is 205267. The next prime is 205297. The reversal of 205294 is 492502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 492502 = 2246251.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205297) by changing a digit.

205294 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51322 + ... + 51325.

It is an arithmetic number, because the mean of its divisors is an integer number (76986).

2205294 is an apocalyptic number.

205294 is a deficient number, since it is larger than the sum of its proper divisors (102650).

205294 is a wasteful number, since it uses less digits than its factorization.

205294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102649.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 205294 is about 453.0938092713. The cubic root of 205294 is about 58.9918594533.

Adding to 205294 its reverse (492502), we get a palindrome (697796).

The spelling of 205294 in words is "two hundred five thousand, two hundred ninety-four".

Divisors: 1 2 102647 205294