Base | Representation |
---|---|
bin | 11000111010010… |
… | …00111001010110 |
3 | 112120012112101002 |
4 | 30131020321112 |
5 | 411443341311 |
6 | 32422503302 |
7 | 5115114002 |
oct | 1435107126 |
9 | 476175332 |
10 | 208965206 |
11 | a7a5671a |
12 | 59b94b32 |
13 | 343a5b68 |
14 | 1da77702 |
15 | 1352a93b |
hex | c748e56 |
208965206 has 4 divisors (see below), whose sum is σ = 313447812. Its totient is φ = 104482602.
The previous prime is 208965179. The next prime is 208965209. The reversal of 208965206 is 602569802.
208965206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 602569802 = 2 ⋅301284901.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 208965206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (208965209) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52241300 + ... + 52241303.
It is an arithmetic number, because the mean of its divisors is an integer number (78361953).
Almost surely, 2208965206 is an apocalyptic number.
208965206 is a deficient number, since it is larger than the sum of its proper divisors (104482606).
208965206 is a wasteful number, since it uses less digits than its factorization.
208965206 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 104482605.
The product of its (nonzero) digits is 51840, while the sum is 38.
The square root of 208965206 is about 14455.6288690600. The cubic root of 208965206 is about 593.4142801511.
The spelling of 208965206 in words is "two hundred eight million, nine hundred sixty-five thousand, two hundred six".
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