Base | Representation |
---|---|
bin | 100101011111001010… |
… | …1101000011000100101 |
3 | 21200210101010120012020 |
4 | 1022332111220120211 |
5 | 2304332201042210 |
6 | 100552113213353 |
7 | 5546635052136 |
oct | 1127625503045 |
9 | 250711116166 |
10 | 80502752805 |
11 | 31160783772 |
12 | 13728261259 |
13 | 778c341b97 |
14 | 3c79849c8d |
15 | 21626cc770 |
hex | 12be568625 |
80502752805 has 32 divisors (see below), whose sum is σ = 129844874880. Its totient is φ = 42588522240.
The previous prime is 80502752789. The next prime is 80502752809. The reversal of 80502752805 is 50825720508.
It is not a de Polignac number, because 80502752805 - 24 = 80502752789 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80502752809) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2446039 + ... + 2478731.
It is an arithmetic number, because the mean of its divisors is an integer number (4057652340).
Almost surely, 280502752805 is an apocalyptic number.
It is an amenable number.
80502752805 is a deficient number, since it is larger than the sum of its proper divisors (49342122075).
80502752805 is a wasteful number, since it uses less digits than its factorization.
80502752805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34021.
The product of its (nonzero) digits is 224000, while the sum is 42.
The spelling of 80502752805 in words is "eighty billion, five hundred two million, seven hundred fifty-two thousand, eight hundred five".
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