Base | Representation |
---|---|
bin | 1001101000011… |
… | …11000011011100 |
3 | 12122001011112010 |
4 | 10310033003130 |
5 | 131141131022 |
6 | 12003511220 |
7 | 2000543244 |
oct | 464170334 |
9 | 178034463 |
10 | 80802012 |
11 | 41679825 |
12 | 23088510 |
13 | 13981455 |
14 | aa34b24 |
15 | 716150c |
hex | 4d0f0dc |
80802012 has 24 divisors (see below), whose sum is σ = 189374976. Its totient is φ = 26814448.
The previous prime is 80801989. The next prime is 80802017. The reversal of 80802012 is 21020808.
It is a self number, because there is not a number n which added to its sum of digits gives 80802012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80802017) by changing a digit.
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, 12108 + ... + 17555.
It is an arithmetic number, because the mean of its divisors is an integer number (7890624).
Almost surely, 280802012 is an apocalyptic number.
It is an amenable number.
80802012 is an abundant number, since it is smaller than the sum of its proper divisors (108572964).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80802012 is a wasteful number, since it uses less digits than its factorization.
80802012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29897 (or 29895 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 21.
The square root of 80802012 is about 8988.9939370321. The cubic root of 80802012 is about 432.3220549452.
The spelling of 80802012 in words is "eighty million, eight hundred two thousand, twelve".
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