Base | Representation |
---|---|
bin | 100101100100000111111… |
… | …010011000000011100101 |
3 | 100010210001202201221012211 |
4 | 211210013322120003211 |
5 | 314243210432311133 |
6 | 5253514342043421 |
7 | 354333461466616 |
oct | 45440772300345 |
9 | 10123052657184 |
10 | 2581408088293 |
11 | 9058506289a1 |
12 | 358364419571 |
13 | 15956c468098 |
14 | 8cd25867c0d |
15 | 47235a20bcd |
hex | 25907e980e5 |
2581408088293 has 2 divisors, whose sum is σ = 2581408088294. Its totient is φ = 2581408088292.
The previous prime is 2581408088291. The next prime is 2581408088339. The reversal of 2581408088293 is 3928808041852.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 2175840355329 + 405567732964 = 1475073^2 + 636842^2 .
It is a cyclic number.
It is not a de Polignac number, because 2581408088293 - 21 = 2581408088291 is a prime.
Together with 2581408088291, 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 (2581408088291) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290704044146 + 1290704044147.
It is an arithmetic number, because the mean of its divisors is an integer number (1290704044147).
Almost surely, 22581408088293 is an apocalyptic number.
It is an amenable number.
2581408088293 is a deficient number, since it is larger than the sum of its proper divisors (1).
2581408088293 is an equidigital number, since it uses as much as digits as its factorization.
2581408088293 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 8847360, while the sum is 58.
The spelling of 2581408088293 in words is "two trillion, five hundred eighty-one billion, four hundred eight million, eighty-eight thousand, two hundred ninety-three".
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