Base | Representation |
---|---|
bin | 1001100110001… |
… | …01110111001100 |
3 | 12121110221021201 |
4 | 10303011313030 |
5 | 131102032340 |
6 | 11553235244 |
7 | 1665154231 |
oct | 463056714 |
9 | 177427251 |
10 | 80502220 |
11 | 41494567 |
12 | 22b62b24 |
13 | 138a7b66 |
14 | a997788 |
15 | 710279a |
hex | 4cc5dcc |
80502220 has 12 divisors (see below), whose sum is σ = 169054704. Its totient is φ = 32200880.
The previous prime is 80502209. The next prime is 80502239. The reversal of 80502220 is 2220508.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2012536 + ... + 2012575.
It is an arithmetic number, because the mean of its divisors is an integer number (14087892).
Almost surely, 280502220 is an apocalyptic number.
It is an amenable number.
80502220 is an abundant number, since it is smaller than the sum of its proper divisors (88552484).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80502220 is a wasteful number, since it uses less digits than its factorization.
80502220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4025120 (or 4025118 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 19.
The square root of 80502220 is about 8972.3029373734. The cubic root of 80502220 is about 431.7867245715.
Adding to 80502220 its reverse (2220508), we get a palindrome (82722728).
The spelling of 80502220 in words is "eighty million, five hundred two thousand, two hundred twenty".
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