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206407061943 = 3172521456949
BaseRepresentation
bin1100000000111011010…
…0011101000110110111
3201201202212022011011220
43000032310131012313
511340210201440233
6234453323401423
720624650035615
oct3001664350667
9651685264156
10206407061943
117a59a450715
1234005383273
131660582c9a4
149dc0db26b5
155580bb7eb3
hex300ed1d1b7

206407061943 has 24 divisors (see below), whose sum is σ = 292912261200. Its totient is φ = 129261450240.

The previous prime is 206407061923. The next prime is 206407061953. The reversal of 206407061943 is 349160704602.

206407061943 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 206407061943 - 25 = 206407061911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206407061895 and 206407061904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206407061923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223233 + ... + 680181.

It is an arithmetic number, because the mean of its divisors is an integer number (12204677550).

Almost surely, 2206407061943 is an apocalyptic number.

206407061943 is a deficient number, since it is larger than the sum of its proper divisors (86505199257).

206407061943 is a wasteful number, since it uses less digits than its factorization.

206407061943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457507 (or 457490 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 206407061943 in words is "two hundred six billion, four hundred seven million, sixty-one thousand, nine hundred forty-three".

Divisors: 1 3 17 51 289 521 867 1563 8857 26571 150569 451707 456949 1370847 7768133 23304399 132058261 238070429 396174783 714211287 4047197293 12141591879 68802353981 206407061943