Base | Representation |
---|---|
bin | 1001100111011… |
… | …10011000101001 |
3 | 12121210100222011 |
4 | 10303232120221 |
5 | 131122340301 |
6 | 12000555521 |
7 | 1666445155 |
oct | 463563051 |
9 | 177710864 |
10 | 80668201 |
11 | 41598239 |
12 | 23022ba1 |
13 | 13935583 |
14 | a9dc065 |
15 | 7136a51 |
hex | 4cee629 |
80668201 has 4 divisors (see below), whose sum is σ = 81872272. Its totient is φ = 79464132.
The previous prime is 80668193. The next prime is 80668219. The reversal of 80668201 is 10286608.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 80668201 - 23 = 80668193 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80668271) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601935 + ... + 602068.
It is an arithmetic number, because the mean of its divisors is an integer number (20468068).
Almost surely, 280668201 is an apocalyptic number.
It is an amenable number.
80668201 is a deficient number, since it is larger than the sum of its proper divisors (1204071).
80668201 is a wasteful number, since it uses less digits than its factorization.
80668201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1204070.
The product of its (nonzero) digits is 4608, while the sum is 31.
The square root of 80668201 is about 8981.5478064752. The cubic root of 80668201 is about 432.0832761984.
The spelling of 80668201 in words is "eighty million, six hundred sixty-eight thousand, two hundred one".
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