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208368394 = 21319141959
BaseRepresentation
bin11000110101101…
…11001100001010
3112112002012200221
430122313030022
5411320242034
632402020254
75110050013
oct1432671412
9475065627
10208368394
11a7689293
125994768a
1334227310
141d96000a
151345dbb4
hexc6b730a

208368394 has 16 divisors (see below), whose sum is σ = 338365440. Its totient is φ = 95664240.

The previous prime is 208368389. The next prime is 208368401. The reversal of 208368394 is 493863802.

208368394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 208368394.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16014 + ... + 25945.

It is an arithmetic number, because the mean of its divisors is an integer number (21147840).

Almost surely, 2208368394 is an apocalyptic number.

208368394 is a deficient number, since it is larger than the sum of its proper divisors (129997046).

208368394 is a wasteful number, since it uses less digits than its factorization.

208368394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42165.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 208368394 is about 14434.9712157662. The cubic root of 208368394 is about 592.8488040965.

The spelling of 208368394 in words is "two hundred eight million, three hundred sixty-eight thousand, three hundred ninety-four".

Divisors: 1 2 13 26 191 382 2483 4966 41959 83918 545467 1090934 8014169 16028338 104184197 208368394