Base | Representation |
---|---|
bin | 101111111000… |
… | …1011101110101 |
3 | 1202020112100201 |
4 | 1133301131311 |
5 | 22411400133 |
6 | 2254040501 |
7 | 423254122 |
oct | 137613565 |
9 | 52215321 |
10 | 25106293 |
11 | 13198803 |
12 | 84a9131 |
13 | 52806c4 |
14 | 3497749 |
15 | 230dd7d |
hex | 17f1775 |
25106293 has 2 divisors, whose sum is σ = 25106294. Its totient is φ = 25106292.
The previous prime is 25106287. The next prime is 25106321. The reversal of 25106293 is 39260152.
It is an a-pointer prime, because the next prime (25106321) can be obtained adding 25106293 to its sum of digits (28).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 20007729 + 5098564 = 4473^2 + 2258^2 .
It is a cyclic number.
It is not a de Polignac number, because 25106293 - 29 = 25105781 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (25106203) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12553146 + 12553147.
It is an arithmetic number, because the mean of its divisors is an integer number (12553147).
Almost surely, 225106293 is an apocalyptic number.
It is an amenable number.
25106293 is a deficient number, since it is larger than the sum of its proper divisors (1).
25106293 is an equidigital number, since it uses as much as digits as its factorization.
25106293 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3240, while the sum is 28.
The square root of 25106293 is about 5010.6180257529. The cubic root of 25106293 is about 292.8155913854.
The spelling of 25106293 in words is "twenty-five million, one hundred six thousand, two hundred ninety-three".
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