Base | Representation |
---|---|
bin | 1001100100000… |
… | …01011101000100 |
3 | 12120221200220221 |
4 | 10302001131010 |
5 | 131014101040 |
6 | 11543234124 |
7 | 1662606304 |
oct | 462013504 |
9 | 176850827 |
10 | 80222020 |
11 | 41312a9a |
12 | 22a48944 |
13 | 1380a468 |
14 | a923604 |
15 | 709974a |
hex | 4c81744 |
80222020 has 24 divisors (see below), whose sum is σ = 169231104. Its totient is φ = 31943136.
The previous prime is 80222011. The next prime is 80222039. The reversal of 80222020 is 2022208.
It is a junction number, because it is equal to n+sod(n) for n = 80221985 and 80222003.
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, 4534 + ... + 13453.
It is an arithmetic number, because the mean of its divisors is an integer number (7051296).
Almost surely, 280222020 is an apocalyptic number.
It is an amenable number.
80222020 is an abundant number, since it is smaller than the sum of its proper divisors (89009084).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80222020 is a wasteful number, since it uses less digits than its factorization.
80222020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18219 (or 18217 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 16.
The square root of 80222020 is about 8956.6746061248. The cubic root of 80222020 is about 431.2851761547.
Adding to 80222020 its reverse (2022208), we get a palindrome (82244228).
It can be divided in two parts, 802 and 22020, that added together give a palindrome (22822).
The spelling of 80222020 in words is "eighty million, two hundred twenty-two thousand, twenty".
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