Base | Representation |
---|---|
bin | 11000111001100… |
… | …01111100000000 |
3 | 112120000202101012 |
4 | 30130301330000 |
5 | 411432334133 |
6 | 32420500052 |
7 | 5114242562 |
oct | 1434617400 |
9 | 476022335 |
10 | 208871168 |
11 | a79a2000 |
12 | 59b4a628 |
13 | 3437210c |
14 | 1da51332 |
15 | 1350cb48 |
hex | c731f00 |
208871168 has 72 divisors (see below), whose sum is σ = 459335856. Its totient is φ = 94786560.
The previous prime is 208871147. The next prime is 208871183. The reversal of 208871168 is 861178802.
It is a zygodrome in base 2.
It is a congruent number.
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, 340430 + ... + 341042.
Almost surely, 2208871168 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 208871168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229667928).
208871168 is an abundant number, since it is smaller than the sum of its proper divisors (250464688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
208871168 is an frugal number, since it uses more digits than its factorization.
208871168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 662 (or 626 counting only the distinct ones).
The product of its (nonzero) digits is 43008, while the sum is 41.
The square root of 208871168 is about 14452.3758600446. The cubic root of 208871168 is about 593.3252511910.
The spelling of 208871168 in words is "two hundred eight million, eight hundred seventy-one thousand, one hundred sixty-eight".
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