Base | Representation |
---|---|
bin | 11111110011101… |
… | …00010000010001 |
3 | 200121001120122211 |
4 | 33321310100101 |
5 | 1021301030411 |
6 | 42250432121 |
7 | 6416612533 |
oct | 1771642021 |
9 | 617046584 |
10 | 266814481 |
11 | 12767873a |
12 | 75432641 |
13 | 4337bbbb |
14 | 27615853 |
15 | 18656221 |
hex | fe74411 |
266814481 has 2 divisors, whose sum is σ = 266814482. Its totient is φ = 266814480.
The previous prime is 266814463. The next prime is 266814497. The reversal of 266814481 is 184418662.
266814481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 261792400 + 5022081 = 16180^2 + 2241^2 .
It is a cyclic number.
It is not a de Polignac number, because 266814481 - 29 = 266813969 is a prime.
It is a super-2 number, since 2×2668144812 = 142379934542598722, which contains 22 as substring.
It is a nialpdrome in base 16.
It is not a weakly prime, because it can be changed into another prime (266818481) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133407240 + 133407241.
It is an arithmetic number, because the mean of its divisors is an integer number (133407241).
Almost surely, 2266814481 is an apocalyptic number.
It is an amenable number.
266814481 is a deficient number, since it is larger than the sum of its proper divisors (1).
266814481 is an equidigital number, since it uses as much as digits as its factorization.
266814481 is an evil number, because the sum of its binary digits is even.
The product of its digits is 73728, while the sum is 40.
The square root of 266814481 is about 16334.4568627181. The cubic root of 266814481 is about 643.7784954113.
The spelling of 266814481 in words is "two hundred sixty-six million, eight hundred fourteen thousand, four hundred eighty-one".
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