Base | Representation |
---|---|
bin | 11101001000000… |
… | …111011100010001 |
3 | 1021001111211221222 |
4 | 131020013130101 |
5 | 2000044320042 |
6 | 120253454425 |
7 | 15052412555 |
oct | 3510073421 |
9 | 1231454858 |
10 | 488666897 |
11 | 230926744 |
12 | 1177a1415 |
13 | 7a317814 |
14 | 48c85865 |
15 | 2cd7a2d2 |
hex | 1d207711 |
488666897 has 2 divisors, whose sum is σ = 488666898. Its totient is φ = 488666896.
The previous prime is 488666879. The next prime is 488666933. The reversal of 488666897 is 798666884.
It is a happy number.
Together with previous prime (488666879) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 424730881 + 63936016 = 20609^2 + 7996^2 .
It is a cyclic number.
It is not a de Polignac number, because 488666897 - 228 = 220231441 is a prime.
It is not a weakly prime, because it can be changed into another prime (488666797) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244333448 + 244333449.
It is an arithmetic number, because the mean of its divisors is an integer number (244333449).
Almost surely, 2488666897 is an apocalyptic number.
It is an amenable number.
488666897 is a deficient number, since it is larger than the sum of its proper divisors (1).
488666897 is an equidigital number, since it uses as much as digits as its factorization.
488666897 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 27869184, while the sum is 62.
The square root of 488666897 is about 22105.8113852444. The cubic root of 488666897 is about 787.6579124664.
The spelling of 488666897 in words is "four hundred eighty-eight million, six hundred sixty-six thousand, eight hundred ninety-seven".
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