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206286 = 2334381
BaseRepresentation
bin110010010111001110
3101110222020
4302113032
523100121
64231010
71516263
oct622716
9343866
10206286
11130a93
129b466
1372b82
145526a
15411c6
hex325ce

206286 has 8 divisors (see below), whose sum is σ = 412584. Its totient is φ = 68760.

The previous prime is 206281. The next prime is 206291. The reversal of 206286 is 682602.

206286 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (206281) and next prime (206291).

It is a sphenic number, since it is the product of 3 distinct primes.

206286 is an admirable number.

It is a Smith number, since the sum of its digits (24) 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 (206281) by changing a digit.

206286 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 in 3 ways as a sum of consecutive naturals, for example, 17185 + ... + 17196.

It is an arithmetic number, because the mean of its divisors is an integer number (51573).

2206286 is an apocalyptic number.

206286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206286 is a wasteful number, since it uses less digits than its factorization.

206286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34386.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 206286 is about 454.1871860808. The cubic root of 206286 is about 59.0867248965.

Adding to 206286 its reverse (682602), we get a palindrome (888888).

The spelling of 206286 in words is "two hundred six thousand, two hundred eighty-six".

Divisors: 1 2 3 6 34381 68762 103143 206286