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206467730237 = 3171759737013
BaseRepresentation
bin1100000001001001101…
…1111000101100111101
3201201221002110102102202
43000102123320230331
511340321214331422
6234503332001245
720626314515246
oct3002233705475
9651832412382
10206467730237
117a6207186aa
1234021760225
1316615281ba2
149dc9085ccd
15558619db92
hex30126f8b3d

206467730237 has 8 divisors (see below), whose sum is σ = 207136414296. Its totient is φ = 205799156032.

The previous prime is 206467730213. The next prime is 206467730279. The reversal of 206467730237 is 732037764602.

206467730237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7342947481 + 199124782756 = 85691^2 + 446234^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 206467730237 - 28 = 206467729981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206467730191 and 206467730200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206467730207) 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 7 ways as a sum of consecutive naturals, for example, 5559743 + ... + 5596755.

It is an arithmetic number, because the mean of its divisors is an integer number (25892051787).

Almost surely, 2206467730237 is an apocalyptic number.

It is an amenable number.

206467730237 is a deficient number, since it is larger than the sum of its proper divisors (668684059).

206467730237 is a wasteful number, since it uses less digits than its factorization.

206467730237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54927.

The product of its (nonzero) digits is 1778112, while the sum is 47.

The spelling of 206467730237 in words is "two hundred six billion, four hundred sixty-seven million, seven hundred thirty thousand, two hundred thirty-seven".

Divisors: 1 317 17597 37013 5578249 11733121 651317761 206467730237