Base | Representation |
---|---|
bin | 100101101000001100… |
… | …0101110001110011111 |
3 | 21201120110220102001022 |
4 | 1023100120232032133 |
5 | 2310442210144210 |
6 | 101042131234355 |
7 | 5560302603533 |
oct | 1132030561637 |
9 | 251513812038 |
10 | 80805553055 |
11 | 312a66a0007 |
12 | 137b17489bb |
13 | 7809cb0426 |
14 | 3ca7b4bbc3 |
15 | 217e091155 |
hex | 12d062e39f |
80805553055 has 16 divisors (see below), whose sum is σ = 103800182400. Its totient is φ = 60204097440.
The previous prime is 80805553039. The next prime is 80805553057. The reversal of 80805553055 is 55035550808.
It is a happy number.
It is not a de Polignac number, because 80805553055 - 24 = 80805553039 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 80805552997 and 80805553015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80805553057) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7202741 + ... + 7213950.
It is an arithmetic number, because the mean of its divisors is an integer number (6487511400).
Almost surely, 280805553055 is an apocalyptic number.
80805553055 is a deficient number, since it is larger than the sum of its proper divisors (22994629345).
80805553055 is a wasteful number, since it uses less digits than its factorization.
80805553055 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14416774.
The product of its (nonzero) digits is 600000, while the sum is 44.
The spelling of 80805553055 in words is "eighty billion, eight hundred five million, five hundred fifty-three thousand, fifty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •