Base | Representation |
---|---|
bin | 1001100011111… |
… | …01010110000100 |
3 | 12120220211211112 |
4 | 10301331112010 |
5 | 131013031223 |
6 | 11543024152 |
7 | 1662506240 |
oct | 461752604 |
9 | 176824745 |
10 | 80205188 |
11 | 41301388 |
12 | 22a3b058 |
13 | 138028bb |
14 | a91b420 |
15 | 7094778 |
hex | 4c7d584 |
80205188 has 24 divisors (see below), whose sum is σ = 160746432. Its totient is φ = 34301664.
The previous prime is 80205161. The next prime is 80205217. The reversal of 80205188 is 88150208.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11906 + ... + 17382.
It is an arithmetic number, because the mean of its divisors is an integer number (6697768).
Almost surely, 280205188 is an apocalyptic number.
It is an amenable number.
80205188 is an abundant number, since it is smaller than the sum of its proper divisors (80541244).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80205188 is a wasteful number, since it uses less digits than its factorization.
80205188 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6011 (or 6009 counting only the distinct ones).
The product of its (nonzero) digits is 5120, while the sum is 32.
The square root of 80205188 is about 8955.7349223835. The cubic root of 80205188 is about 431.2550102898.
The spelling of 80205188 in words is "eighty million, two hundred five thousand, one hundred eighty-eight".
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