Base | Representation |
---|---|
bin | 1001100110010… |
… | …01101110011001 |
3 | 12121111201222200 |
4 | 10303021232121 |
5 | 131103034131 |
6 | 11553440413 |
7 | 1665251322 |
oct | 463115631 |
9 | 177451880 |
10 | 80518041 |
11 | 414a543a |
12 | 22b70109 |
13 | 138b2116 |
14 | a99d449 |
15 | 71072e6 |
hex | 4cc9b99 |
80518041 has 6 divisors (see below), whose sum is σ = 116303850. Its totient is φ = 53678688.
The previous prime is 80518027. The next prime is 80518049. The reversal of 80518041 is 14081508.
It can be written as a sum of positive squares in only one way, i.e., 79923600 + 594441 = 8940^2 + 771^2 .
It is not a de Polignac number, because 80518041 - 221 = 78420889 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 80517996 and 80518014.
It is not an unprimeable number, because it can be changed into a prime (80518049) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4473216 + ... + 4473233.
It is an arithmetic number, because the mean of its divisors is an integer number (19383975).
Almost surely, 280518041 is an apocalyptic number.
It is an amenable number.
80518041 is a deficient number, since it is larger than the sum of its proper divisors (35785809).
80518041 is a wasteful number, since it uses less digits than its factorization.
80518041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8946455 (or 8946452 counting only the distinct ones).
The product of its (nonzero) digits is 1280, while the sum is 27.
The square root of 80518041 is about 8973.1845517631. The cubic root of 80518041 is about 431.8150088859.
Adding to 80518041 its reverse (14081508), we get a palindrome (94599549).
The spelling of 80518041 in words is "eighty million, five hundred eighteen thousand, forty-one".
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