Base | Representation |
---|---|
bin | 111011001101101101101011… |
… | …110101000011000011100101 |
3 | 1021011002120222221002202121111 |
4 | 323031231223311003003211 |
5 | 233113314301132424341 |
6 | 2321514325341345021 |
7 | 105566145402500164 |
oct | 7315555365030345 |
9 | 1234076887082544 |
10 | 260427151061221 |
11 | 75a865974a7a21 |
12 | 25260639b68171 |
13 | b24123753a1b1 |
14 | 4844a544453db |
15 | 2019493eae681 |
hex | ecdb6bd430e5 |
260427151061221 has 2 divisors, whose sum is σ = 260427151061222. Its totient is φ = 260427151061220.
The previous prime is 260427151061219. The next prime is 260427151061227. The reversal of 260427151061221 is 122160151724062.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 232049955710596 + 28377195350625 = 15233186^2 + 5327025^2 .
It is a cyclic number.
It is not a de Polignac number, because 260427151061221 - 21 = 260427151061219 is a prime.
Together with 260427151061219, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (260427151061227) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130213575530610 + 130213575530611.
It is an arithmetic number, because the mean of its divisors is an integer number (130213575530611).
Almost surely, 2260427151061221 is an apocalyptic number.
It is an amenable number.
260427151061221 is a deficient number, since it is larger than the sum of its proper divisors (1).
260427151061221 is an equidigital number, since it uses as much as digits as its factorization.
260427151061221 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 80640, while the sum is 40.
The spelling of 260427151061221 in words is "two hundred sixty trillion, four hundred twenty-seven billion, one hundred fifty-one million, sixty-one thousand, two hundred twenty-one".
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