Base | Representation |
---|---|
bin | 1001101001010… |
… | …01001011110001 |
3 | 12122020121100011 |
4 | 10310221023301 |
5 | 131203042131 |
6 | 12010054521 |
7 | 2001500263 |
oct | 464511361 |
9 | 178217304 |
10 | 80909041 |
11 | 41742184 |
12 | 2311a441 |
13 | 139bb095 |
14 | aa61b33 |
15 | 71830b1 |
hex | 4d292f1 |
80909041 has 2 divisors, whose sum is σ = 80909042. Its totient is φ = 80909040.
The previous prime is 80909029. The next prime is 80909051. The reversal of 80909041 is 14090908.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 44957025 + 35952016 = 6705^2 + 5996^2 .
It is a cyclic number.
It is not a de Polignac number, because 80909041 - 27 = 80908913 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 80908994 and 80909012.
It is not a weakly prime, because it can be changed into another prime (80909021) 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, 40454520 + 40454521.
It is an arithmetic number, because the mean of its divisors is an integer number (40454521).
Almost surely, 280909041 is an apocalyptic number.
It is an amenable number.
80909041 is a deficient number, since it is larger than the sum of its proper divisors (1).
80909041 is an equidigital number, since it uses as much as digits as its factorization.
80909041 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2592, while the sum is 31.
The square root of 80909041 is about 8994.9453027798. The cubic root of 80909041 is about 432.5128529264.
Adding to 80909041 its reverse (14090908), we get a palindrome (94999949).
The spelling of 80909041 in words is "eighty million, nine hundred nine thousand, forty-one".
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