Base | Representation |
---|---|
bin | 100101011110110000… |
… | …1000011010101000101 |
3 | 21200202102012022002222 |
4 | 1022331201003111011 |
5 | 2304320134011131 |
6 | 100550501542125 |
7 | 5546406644531 |
oct | 1127541032505 |
9 | 250672168088 |
10 | 80488969541 |
11 | 31153a1a142 |
12 | 13723714945 |
13 | 77895272c6 |
14 | 3c77a9cbc1 |
15 | 21613a887b |
hex | 12bd843545 |
80488969541 has 2 divisors, whose sum is σ = 80488969542. Its totient is φ = 80488969540.
The previous prime is 80488969531. The next prime is 80488969567. The reversal of 80488969541 is 14596988408.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 71936604100 + 8552365441 = 268210^2 + 92479^2 .
It is a cyclic number.
It is not a de Polignac number, because 80488969541 - 234 = 63309100357 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80488969531) by changing a digit.
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 as a sum of consecutive naturals, namely, 40244484770 + 40244484771.
It is an arithmetic number, because the mean of its divisors is an integer number (40244484771).
Almost surely, 280488969541 is an apocalyptic number.
It is an amenable number.
80488969541 is a deficient number, since it is larger than the sum of its proper divisors (1).
80488969541 is an equidigital number, since it uses as much as digits as its factorization.
80488969541 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 19906560, while the sum is 62.
The spelling of 80488969541 in words is "eighty billion, four hundred eighty-eight million, nine hundred sixty-nine thousand, five hundred forty-one".
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