Base | Representation |
---|---|
bin | 1000000111100010… |
… | …0011011110000000 |
3 | 12121212100001022121 |
4 | 2001320203132000 |
5 | 13430321224313 |
6 | 1000121214024 |
7 | 104666633005 |
oct | 20170433600 |
9 | 5555301277 |
10 | 2179086208 |
11 | a190457a2 |
12 | 509931314 |
13 | 2895bb330 |
14 | 1695958ac |
15 | cb48a28d |
hex | 81e23780 |
2179086208 has 64 divisors (see below), whose sum is σ = 4739389200. Its totient is φ = 991899648.
The previous prime is 2179086199. The next prime is 2179086209. The reversal of 2179086208 is 8026809712.
It is a tau number, because it is divible by the number of its divisors (64).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2179086209) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112503 + ... + 130441.
Almost surely, 22179086208 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 2179086208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2369694600).
2179086208 is an abundant number, since it is smaller than the sum of its proper divisors (2560302992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2179086208 is a wasteful number, since it uses less digits than its factorization.
2179086208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18039 (or 18027 counting only the distinct ones).
The product of its (nonzero) digits is 96768, while the sum is 43.
The square root of 2179086208 is about 46680.6834568647. The cubic root of 2179086208 is about 1296.4570607575.
The spelling of 2179086208 in words is "two billion, one hundred seventy-nine million, eighty-six thousand, two hundred eight".
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