Base | Representation |
---|---|
bin | 1001100011111… |
… | …01110100000001 |
3 | 12120220221110112 |
4 | 10301331310001 |
5 | 131013111410 |
6 | 11543041105 |
7 | 1662514646 |
oct | 461756401 |
9 | 176827415 |
10 | 80207105 |
11 | 41302870 |
12 | 22a40195 |
13 | 13803734 |
14 | a91bdcd |
15 | 7095105 |
hex | 4c7dd01 |
80207105 has 32 divisors (see below), whose sum is σ = 112337280. Its totient is φ = 54328320.
The previous prime is 80207087. The next prime is 80207119. The reversal of 80207105 is 50170208.
It is not a de Polignac number, because 80207105 - 216 = 80141569 is a prime.
It is a Curzon number.
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 31 ways as a sum of consecutive naturals, for example, 101522 + ... + 102308.
It is an arithmetic number, because the mean of its divisors is an integer number (3510540).
Almost surely, 280207105 is an apocalyptic number.
80207105 is a gapful number since it is divisible by the number (85) formed by its first and last digit.
It is an amenable number.
80207105 is a deficient number, since it is larger than the sum of its proper divisors (32130175).
80207105 is a wasteful number, since it uses less digits than its factorization.
80207105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 929.
The product of its (nonzero) digits is 560, while the sum is 23.
The square root of 80207105 is about 8955.8419481364. The cubic root of 80207105 is about 431.2584460994.
The spelling of 80207105 in words is "eighty million, two hundred seven thousand, one hundred five".
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