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206326471 = 1322677001
BaseRepresentation
bin11000100110001…
…00101011000111
3112101020110201011
430103010223013
5410304421341
632250143051
75053513621
oct1423045307
9471213634
10206326471
11a651414a
1259121a87
1333990a90
141d58bc11
15131a8b81
hexc4c4ac7

206326471 has 8 divisors (see below), whose sum is σ = 222327504. Its totient is φ = 190344000.

The previous prime is 206326459. The next prime is 206326489. The reversal of 206326471 is 174623602.

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 206326471 - 27 = 206326343 is a prime.

It is a super-3 number, since 3×2063264713 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206329471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25971 + ... + 32971.

It is an arithmetic number, because the mean of its divisors is an integer number (27790938).

Almost surely, 2206326471 is an apocalyptic number.

206326471 is a deficient number, since it is larger than the sum of its proper divisors (16001033).

206326471 is a wasteful number, since it uses less digits than its factorization.

206326471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9281.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 206326471 is about 14364.0687480950. The cubic root of 206326471 is about 590.9058869477.

The spelling of 206326471 in words is "two hundred six million, three hundred twenty-six thousand, four hundred seventy-one".

Divisors: 1 13 2267 7001 29471 91013 15871267 206326471