Search a number
-
+
206193 = 31317311
BaseRepresentation
bin110010010101110001
3101110211210
4302111301
523044233
64230333
71516101
oct622561
9343753
10206193
11130a09
129b3a9
1372b10
1455201
1541163
hex32571

206193 has 16 divisors (see below), whose sum is σ = 314496. Its totient is φ = 119040.

The previous prime is 206191. The next prime is 206197. The reversal of 206193 is 391602.

206193 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 206193 - 21 = 206191 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206191) 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, 508 + ... + 818.

It is an arithmetic number, because the mean of its divisors is an integer number (19656).

2206193 is an apocalyptic number.

It is an amenable number.

206193 is a deficient number, since it is larger than the sum of its proper divisors (108303).

206193 is a wasteful number, since it uses less digits than its factorization.

206193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 206193 is about 454.0847938436. The cubic root of 206193 is about 59.0778441978.

Adding to 206193 its reverse (391602), we get a palindrome (597795).

The spelling of 206193 in words is "two hundred six thousand, one hundred ninety-three".

Divisors: 1 3 13 17 39 51 221 311 663 933 4043 5287 12129 15861 68731 206193