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206330223 = 31122072833
BaseRepresentation
bin11000100110001…
…01100101101111
3112101020122212010
430103011211233
5410310031343
632250212303
75053530561
oct1423054557
9471218763
10206330223
11a6516a50
1259124093
13339926b8
141d58d331
15131a9d33
hexc4c596f

206330223 has 16 divisors (see below), whose sum is σ = 300358656. Its totient is φ = 124947840.

The previous prime is 206330221. The next prime is 206330239. The reversal of 206330223 is 322033602.

It is not a de Polignac number, because 206330223 - 21 = 206330221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206330223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206330221) 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, 71415 + ... + 74247.

It is an arithmetic number, because the mean of its divisors is an integer number (18772416).

Almost surely, 2206330223 is an apocalyptic number.

206330223 is a deficient number, since it is larger than the sum of its proper divisors (94028433).

206330223 is a wasteful number, since it uses less digits than its factorization.

206330223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5054.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 206330223 is about 14364.1993511647. The cubic root of 206330223 is about 590.9094687557.

Adding to 206330223 its reverse (322033602), we get a palindrome (528363825).

The spelling of 206330223 in words is "two hundred six million, three hundred thirty thousand, two hundred twenty-three".

Divisors: 1 3 11 33 2207 2833 6621 8499 24277 31163 72831 93489 6252431 18757293 68776741 206330223