Base | Representation |
---|---|
bin | 1001100101010… |
… | …01100110100101 |
3 | 12121021001111122 |
4 | 10302221212211 |
5 | 131034331334 |
6 | 11550543325 |
7 | 1664162612 |
oct | 462514645 |
9 | 177231448 |
10 | 80386469 |
11 | 414155a9 |
12 | 22b07b45 |
13 | 13867277 |
14 | a967509 |
15 | 70cd32e |
hex | 4ca99a5 |
80386469 has 2 divisors, whose sum is σ = 80386470. Its totient is φ = 80386468.
The previous prime is 80386457. The next prime is 80386477. The reversal of 80386469 is 96468308.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 47748100 + 32638369 = 6910^2 + 5713^2 .
It is a cyclic number.
It is not a de Polignac number, because 80386469 - 212 = 80382373 is a prime.
It is a super-2 number, since 2×803864692 = 12923968796575922, which contains 22 as substring.
It is a Sophie Germain prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80386409) 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 as a sum of consecutive naturals, namely, 40193234 + 40193235.
It is an arithmetic number, because the mean of its divisors is an integer number (40193235).
Almost surely, 280386469 is an apocalyptic number.
It is an amenable number.
80386469 is a deficient number, since it is larger than the sum of its proper divisors (1).
80386469 is an equidigital number, since it uses as much as digits as its factorization.
80386469 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 248832, while the sum is 44.
The square root of 80386469 is about 8965.8501548933. The cubic root of 80386469 is about 431.5796755446.
The spelling of 80386469 in words is "eighty million, three hundred eighty-six thousand, four hundred sixty-nine".
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