Base | Representation |
---|---|
bin | 100100100011000001… |
… | …1111011111101100111 |
3 | 21111120202002101212021 |
4 | 1021012003323331213 |
5 | 2241214110122422 |
6 | 100015550404011 |
7 | 5445633130153 |
oct | 1110603737547 |
9 | 244522071767 |
10 | 78484848487 |
11 | 30315718351 |
12 | 13264500607 |
13 | 752a269266 |
14 | 3b27850063 |
15 | 209547edc7 |
hex | 12460fbf67 |
78484848487 has 2 divisors, whose sum is σ = 78484848488. Its totient is φ = 78484848486.
The previous prime is 78484848479. The next prime is 78484848509.
78484848487 is nontrivially palindromic in base 10.
It is a weak prime.
It is a palprime.
It is a cyclic number.
It is not a de Polignac number, because 78484848487 - 23 = 78484848479 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (78484848427) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39242424243 + 39242424244.
It is an arithmetic number, because the mean of its divisors is an integer number (39242424244).
Almost surely, 278484848487 is an apocalyptic number.
78484848487 is a deficient number, since it is larger than the sum of its proper divisors (1).
78484848487 is an equidigital number, since it uses as much as digits as its factorization.
78484848487 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 411041792, while the sum is 70.
The spelling of 78484848487 in words is "seventy-eight billion, four hundred eighty-four million, eight hundred forty-eight thousand, four hundred eighty-seven".
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