Base | Representation |
---|---|
bin | 100101010101010101… |
… | …1110101110110011100 |
3 | 21122221101200221122120 |
4 | 1022222223311312130 |
5 | 2303143243441222 |
6 | 100455254142540 |
7 | 5535522342420 |
oct | 1125253656634 |
9 | 248841627576 |
10 | 80173030812 |
11 | 31001649756 |
12 | 13655951a50 |
13 | 7738c38804 |
14 | 3c47b3ab80 |
15 | 214379c15c |
hex | 12aaaf5d9c |
80173030812 has 48 divisors (see below), whose sum is σ = 226370914560. Its totient is φ = 21559133952.
The previous prime is 80173030799. The next prime is 80173030853. The reversal of 80173030812 is 21803037108.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28070362 + ... + 28073217.
It is an arithmetic number, because the mean of its divisors is an integer number (4716060720).
Almost surely, 280173030812 is an apocalyptic number.
It is an amenable number.
80173030812 is an abundant number, since it is smaller than the sum of its proper divisors (146197883748).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80173030812 is a wasteful number, since it uses less digits than its factorization.
80173030812 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56143610 (or 56143608 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 33.
The spelling of 80173030812 in words is "eighty billion, one hundred seventy-three million, thirty thousand, eight hundred twelve".
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