Base | Representation |
---|---|
bin | 100101100111000101… |
… | …1100001100100011001 |
3 | 21201110220020220011212 |
4 | 1023032023201210121 |
5 | 2310403221221110 |
6 | 101034330032505 |
7 | 5556343152545 |
oct | 1131613414431 |
9 | 251426226155 |
10 | 80768538905 |
11 | 312878097aa |
12 | 137a1278735 |
13 | 7802420972 |
14 | 3ca2c74a25 |
15 | 217abcde05 |
hex | 12ce2e1919 |
80768538905 has 8 divisors (see below), whose sum is σ = 98287349184. Its totient is φ = 63704762800.
The previous prime is 80768538833. The next prime is 80768538911. The reversal of 80768538905 is 50983586708.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80768538905 - 224 = 80751761689 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113758151 + ... + 113758860.
It is an arithmetic number, because the mean of its divisors is an integer number (12285918648).
Almost surely, 280768538905 is an apocalyptic number.
It is an amenable number.
80768538905 is a deficient number, since it is larger than the sum of its proper divisors (17518810279).
80768538905 is a wasteful number, since it uses less digits than its factorization.
80768538905 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 227517087.
The product of its (nonzero) digits is 14515200, while the sum is 59.
The spelling of 80768538905 in words is "eighty billion, seven hundred sixty-eight million, five hundred thirty-eight thousand, nine hundred five".
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