Base | Representation |
---|---|
bin | 110111011100010001101000… |
… | …1010100101100001001110101 |
3 | 2100221200220210220001002201202 |
4 | 1232320203101110230021311 |
5 | 1002410001234300101101 |
6 | 4445105031553302245 |
7 | 204502041620433221 |
oct | 15670432124541165 |
9 | 2327626726032652 |
10 | 487671278518901 |
11 | 131429256183934 |
12 | 46841b64564985 |
13 | 17c16286936a99 |
14 | 885d5b701d781 |
15 | 3b5a6b0a9036b |
hex | 1bb88d152c275 |
487671278518901 has 2 divisors, whose sum is σ = 487671278518902. Its totient is φ = 487671278518900.
The previous prime is 487671278518867. The next prime is 487671278518903. The reversal of 487671278518901 is 109815872176784.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 482015438522500 + 5655839996401 = 21954850^2 + 2378201^2 .
It is a cyclic number.
It is not a de Polignac number, because 487671278518901 - 234 = 487654098649717 is a prime.
Together with 487671278518903, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (487671278518903) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243835639259450 + 243835639259451.
It is an arithmetic number, because the mean of its divisors is an integer number (243835639259451).
Almost surely, 2487671278518901 is an apocalyptic number.
It is an amenable number.
487671278518901 is a deficient number, since it is larger than the sum of its proper divisors (1).
487671278518901 is an equidigital number, since it uses as much as digits as its factorization.
487671278518901 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 379330560, while the sum is 74.
The spelling of 487671278518901 in words is "four hundred eighty-seven trillion, six hundred seventy-one billion, two hundred seventy-eight million, five hundred eighteen thousand, nine hundred one".
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