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206433071 = 1347337861
BaseRepresentation
bin11000100110111…
…10101100101111
3112101102212221022
430103132230233
5410321324241
632252324355
75054436455
oct1423365457
9471385838
10206433071
11a6587249
12591736bb
13339ca460
141d5b89d5
15131ca54b
hexc4deb2f

206433071 has 8 divisors (see below), whose sum is σ = 227043264. Its totient is φ = 186498720.

The previous prime is 206433037. The next prime is 206433077. The reversal of 206433071 is 170334602.

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 206433071 - 214 = 206416687 is a prime.

It is a super-2 number, since 2×2064330712 = 85229225604982082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206433071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206433077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168320 + ... + 169541.

It is an arithmetic number, because the mean of its divisors is an integer number (28380408).

Almost surely, 2206433071 is an apocalyptic number.

206433071 is a deficient number, since it is larger than the sum of its proper divisors (20610193).

206433071 is a wasteful number, since it uses less digits than its factorization.

206433071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337921.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 206433071 is about 14367.7789167289. The cubic root of 206433071 is about 591.0076346329.

Adding to 206433071 its reverse (170334602), we get a palindrome (376767673).

The spelling of 206433071 in words is "two hundred six million, four hundred thirty-three thousand, seventy-one".

Divisors: 1 13 47 611 337861 4392193 15879467 206433071