Base | Representation |
---|---|
bin | 1110010100001001110… |
… | …11010100011111010101 |
3 | 1202000120022121201022022 |
4 | 13022010323110133111 |
5 | 31024310220232202 |
6 | 1013542233542525 |
7 | 50351442354155 |
oct | 7120473243725 |
9 | 1660508551268 |
10 | 491856414677 |
11 | 17a66013a2a1 |
12 | 7b3a9874a45 |
13 | 374c6c43734 |
14 | 19b3d860765 |
15 | cbdac23ea2 |
hex | 7284ed47d5 |
491856414677 has 2 divisors, whose sum is σ = 491856414678. Its totient is φ = 491856414676.
The previous prime is 491856414391. The next prime is 491856414961. The reversal of 491856414677 is 776414658194.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 366114545476 + 125741869201 = 605074^2 + 354601^2 .
It is a cyclic number.
It is not a de Polignac number, because 491856414677 - 212 = 491856410581 is a prime.
It is a lonely number, since its distance to closest prime (491856414961) sets a new record.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (491856413677) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245928207338 + 245928207339.
It is an arithmetic number, because the mean of its divisors is an integer number (245928207339).
Almost surely, 2491856414677 is an apocalyptic number.
It is an amenable number.
491856414677 is a deficient number, since it is larger than the sum of its proper divisors (1).
491856414677 is an equidigital number, since it uses as much as digits as its factorization.
491856414677 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 40642560, while the sum is 62.
The spelling of 491856414677 in words is "four hundred ninety-one billion, eight hundred fifty-six million, four hundred fourteen thousand, six hundred seventy-seven".
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