Base | Representation |
---|---|
bin | 10001011100111100… |
… | …000011001101011011 |
3 | 1210100221221122222111 |
4 | 101130330003031123 |
5 | 301334203133333 |
6 | 12335244133151 |
7 | 1232241563611 |
oct | 213474031533 |
9 | 53327848874 |
10 | 18739114843 |
11 | 7a46818379 |
12 | 376b8371b7 |
13 | 19c83b6647 |
14 | c9aa676b1 |
15 | 74a2054cd |
hex | 45cf0335b |
18739114843 has 2 divisors, whose sum is σ = 18739114844. Its totient is φ = 18739114842.
The previous prime is 18739114799. The next prime is 18739114897. The reversal of 18739114843 is 34841193781.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-18739114843 is a prime.
It is not a weakly prime, because it can be changed into another prime (18739714843) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9369557421 + 9369557422.
It is an arithmetic number, because the mean of its divisors is an integer number (9369557422).
Almost surely, 218739114843 is an apocalyptic number.
18739114843 is a deficient number, since it is larger than the sum of its proper divisors (1).
18739114843 is an equidigital number, since it uses as much as digits as its factorization.
18739114843 is an evil number, because the sum of its binary digits is even.
The product of its digits is 580608, while the sum is 49.
The spelling of 18739114843 in words is "eighteen billion, seven hundred thirty-nine million, one hundred fourteen thousand, eight hundred forty-three".
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