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206231213235 = 3537336859913
BaseRepresentation
bin1100000000010001010…
…1101001010010110011
3201201022121102010002210
43000010111221102303
511334330142310420
6234424042343203
720620413250305
oct3000425512263
9651277363083
10206231213235
117a50a163a03
1233b764bab03
13165a82804b8
149da58b9975
15557052e9e0
hex30045694b3

206231213235 has 16 divisors (see below), whose sum is σ = 330854588064. Its totient is φ = 109695098112.

The previous prime is 206231213213. The next prime is 206231213269. The reversal of 206231213235 is 532312132602.

It is not a de Polignac number, because 206231213235 - 26 = 206231213171 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18424362 + ... + 18435551.

It is an arithmetic number, because the mean of its divisors is an integer number (20678411754).

Almost surely, 2206231213235 is an apocalyptic number.

206231213235 is a deficient number, since it is larger than the sum of its proper divisors (124623374829).

206231213235 is a wasteful number, since it uses less digits than its factorization.

206231213235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36860294.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 206231213235 its reverse (532312132602), we get a palindrome (738543345837).

The spelling of 206231213235 in words is "two hundred six billion, two hundred thirty-one million, two hundred thirteen thousand, two hundred thirty-five".

Divisors: 1 3 5 15 373 1119 1865 5595 36859913 110579739 184299565 552898695 13748747549 41246242647 68743737745 206231213235