Base | Representation |
---|---|
bin | 10010001110100100011010… |
… | …001011110011010011111001 |
3 | 101111211210110122102221022121 |
4 | 102032210122023303103321 |
5 | 41001414433443144314 |
6 | 442255430451521241 |
7 | 22612542210615361 |
oct | 2216443213632371 |
9 | 344753418387277 |
10 | 80166003881209 |
11 | 235a82362a40a4 |
12 | 8ba88605b9221 |
13 | 3596810c2636c |
14 | 15b20aba079a1 |
15 | 94047d528d24 |
hex | 48e91a2f34f9 |
80166003881209 has 27 divisors (see below), whose sum is σ = 84842675521357. Its totient is φ = 75743282944448.
The previous prime is 80166003881207. The next prime is 80166003881221. The reversal of 80166003881209 is 90218830066108.
The square root of 80166003881209 is 8953547.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 4 ways, for example, as 17596321871209 + 62569682010000 = 4194797^2 + 7910100^2 .
It is not a de Polignac number, because 80166003881209 - 21 = 80166003881207 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80166003881207) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12203681277 + ... + 12203687845.
Almost surely, 280166003881209 is an apocalyptic number.
80166003881209 is the 8953547-th square number.
80166003881209 is the 4476774-th centered octagonal number.
It is an amenable number.
80166003881209 is a deficient number, since it is larger than the sum of its proper divisors (4676671640148).
80166003881209 is an frugal number, since it uses more digits than its factorization.
80166003881209 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13290 (or 6645 counting only the distinct ones).
The product of its (nonzero) digits is 995328, while the sum is 52.
The spelling of 80166003881209 in words is "eighty trillion, one hundred sixty-six billion, three million, eight hundred eighty-one thousand, two hundred nine".
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