Base | Representation |
---|---|
bin | 1001100100100… |
… | …00110101011010 |
3 | 12121001220100012 |
4 | 10302100311122 |
5 | 131023110033 |
6 | 11544441522 |
7 | 1663261052 |
oct | 462206532 |
9 | 177056305 |
10 | 80285018 |
11 | 41356360 |
12 | 22a792a2 |
13 | 13830038 |
14 | a93c562 |
15 | 70ad248 |
hex | 4c90d5a |
80285018 has 16 divisors (see below), whose sum is σ = 131570784. Its totient is φ = 36438960.
The previous prime is 80285003. The next prime is 80285027. The reversal of 80285018 is 81058208.
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, 14996 + ... + 19632.
It is an arithmetic number, because the mean of its divisors is an integer number (8223174).
Almost surely, 280285018 is an apocalyptic number.
80285018 is a deficient number, since it is larger than the sum of its proper divisors (51285766).
80285018 is a wasteful number, since it uses less digits than its factorization.
80285018 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5437.
The product of its (nonzero) digits is 5120, while the sum is 32.
The square root of 80285018 is about 8960.1907345770. The cubic root of 80285018 is about 431.3980420671.
The spelling of 80285018 in words is "eighty million, two hundred eighty-five thousand, eighteen".
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