Base | Representation |
---|---|
bin | 11000110101000… |
… | …11010000110000 |
3 | 112111221001201202 |
4 | 30122203100300 |
5 | 411310134033 |
6 | 32400150332 |
7 | 5106260024 |
oct | 1432432060 |
9 | 474831652 |
10 | 208286768 |
11 | a7632a28 |
12 | 599083a8 |
13 | 341c9111 |
14 | 1d93c384 |
15 | 134448e8 |
hex | c6a3430 |
208286768 has 20 divisors (see below), whose sum is σ = 416574528. Its totient is φ = 100783680.
The previous prime is 208286747. The next prime is 208286773. The reversal of 208286768 is 867682802.
208286768 is an admirable number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209471 + ... + 210462.
Almost surely, 2208286768 is an apocalyptic number.
It is an amenable number.
208286768 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
208286768 is a wasteful number, since it uses less digits than its factorization.
208286768 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 419972 (or 419966 counting only the distinct ones).
The product of its (nonzero) digits is 516096, while the sum is 47.
The square root of 208286768 is about 14432.1435691307. The cubic root of 208286768 is about 592.7713800113.
The spelling of 208286768 in words is "two hundred eight million, two hundred eighty-six thousand, seven hundred sixty-eight".
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