Base | Representation |
---|---|
bin | 10001101111100111… |
… | …000110000100100111 |
3 | 1211011210102121211222 |
4 | 101233213012010213 |
5 | 303004402414042 |
6 | 12430314450555 |
7 | 1243064426405 |
oct | 215747060447 |
9 | 54153377758 |
10 | 19052388647 |
11 | 8097638646 |
12 | 3838733a5b |
13 | 1a48281166 |
14 | cca4d4475 |
15 | 7679872d2 |
hex | 46f9c6127 |
19052388647 has 2 divisors, whose sum is σ = 19052388648. Its totient is φ = 19052388646.
The previous prime is 19052388623. The next prime is 19052388659. The reversal of 19052388647 is 74688325091.
It is a strong prime.
It is an emirp because it is prime and its reverse (74688325091) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 19052388647 - 214 = 19052372263 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (19052384647) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9526194323 + 9526194324.
It is an arithmetic number, because the mean of its divisors is an integer number (9526194324).
It is a 1-persistent number, because it is pandigital, but 2⋅19052388647 = 38104777294 is not.
Almost surely, 219052388647 is an apocalyptic number.
19052388647 is a deficient number, since it is larger than the sum of its proper divisors (1).
19052388647 is an equidigital number, since it uses as much as digits as its factorization.
19052388647 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2903040, while the sum is 53.
The spelling of 19052388647 in words is "nineteen billion, fifty-two million, three hundred eighty-eight thousand, six hundred forty-seven".
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