Base | Representation |
---|---|
bin | 101111110011… |
… | …1010011110101 |
3 | 1202011102021222 |
4 | 1133213103311 |
5 | 22404032233 |
6 | 2253120125 |
7 | 423021623 |
oct | 137472365 |
9 | 52142258 |
10 | 25064693 |
11 | 1316a525 |
12 | 8489045 |
13 | 52677a4 |
14 | 3486513 |
15 | 2301898 |
hex | 17e74f5 |
25064693 has 2 divisors, whose sum is σ = 25064694. Its totient is φ = 25064692.
The previous prime is 25064639. The next prime is 25064713. The reversal of 25064693 is 39646052.
Together with previous prime (25064639) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 24186724 + 877969 = 4918^2 + 937^2 .
It is a cyclic number.
It is not a de Polignac number, because 25064693 - 212 = 25060597 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (25064293) 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, 12532346 + 12532347.
It is an arithmetic number, because the mean of its divisors is an integer number (12532347).
Almost surely, 225064693 is an apocalyptic number.
It is an amenable number.
25064693 is a deficient number, since it is larger than the sum of its proper divisors (1).
25064693 is an equidigital number, since it uses as much as digits as its factorization.
25064693 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 38880, while the sum is 35.
The square root of 25064693 is about 5006.4651202221. The cubic root of 25064693 is about 292.6537745497.
The spelling of 25064693 in words is "twenty-five million, sixty-four thousand, six hundred ninety-three".
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