Base | Representation |
---|---|
bin | 11000100111010000… |
… | …11111111111011101 |
3 | 1021002221000021022012 |
4 | 30103220133333131 |
5 | 204030324121124 |
6 | 10023124001005 |
7 | 645314401355 |
oct | 142350377735 |
9 | 37087007265 |
10 | 13214285789 |
11 | 5671135551 |
12 | 2689530165 |
13 | 13278bb523 |
14 | 8d4dc9b65 |
15 | 52517de0e |
hex | 313a1ffdd |
13214285789 has 2 divisors, whose sum is σ = 13214285790. Its totient is φ = 13214285788.
The previous prime is 13214285779. The next prime is 13214285867. The reversal of 13214285789 is 98758241231.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 9402211225 + 3812074564 = 96965^2 + 61742^2 .
It is a cyclic number.
It is not a de Polignac number, because 13214285789 - 232 = 8919318493 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13214285779) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6607142894 + 6607142895.
It is an arithmetic number, because the mean of its divisors is an integer number (6607142895).
Almost surely, 213214285789 is an apocalyptic number.
It is an amenable number.
13214285789 is a deficient number, since it is larger than the sum of its proper divisors (1).
13214285789 is an equidigital number, since it uses as much as digits as its factorization.
13214285789 is an evil number, because the sum of its binary digits is even.
The product of its digits is 967680, while the sum is 50.
The spelling of 13214285789 in words is "thirteen billion, two hundred fourteen million, two hundred eighty-five thousand, seven hundred eighty-nine".
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