Base | Representation |
---|---|
bin | 1110001111111010010… |
… | …00001011110011101101 |
3 | 1201210200112112121101101 |
4 | 13013331020023303231 |
5 | 31010123442214423 |
6 | 1012524205243101 |
7 | 50241126031321 |
oct | 7077510136355 |
9 | 1653615477341 |
10 | 489578085613 |
11 | 1796a107aa11 |
12 | 7aa72863491 |
13 | 37222c18426 |
14 | 199a5033981 |
15 | cb05bd37ad |
hex | 71fd20bced |
489578085613 has 2 divisors, whose sum is σ = 489578085614. Its totient is φ = 489578085612.
The previous prime is 489578085547. The next prime is 489578085641. The reversal of 489578085613 is 316580875984.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 487222148169 + 2355937444 = 698013^2 + 48538^2 .
It is a cyclic number.
It is not a de Polignac number, because 489578085613 - 237 = 352139132141 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (489578085013) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244789042806 + 244789042807.
It is an arithmetic number, because the mean of its divisors is an integer number (244789042807).
Almost surely, 2489578085613 is an apocalyptic number.
It is an amenable number.
489578085613 is a deficient number, since it is larger than the sum of its proper divisors (1).
489578085613 is an equidigital number, since it uses as much as digits as its factorization.
489578085613 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 58060800, while the sum is 64.
The spelling of 489578085613 in words is "four hundred eighty-nine billion, five hundred seventy-eight million, eighty-five thousand, six hundred thirteen".
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