Base | Representation |
---|---|
bin | 11111011111011011101101 |
3 | 120112102000122 |
4 | 133133123231 |
5 | 4103131323 |
6 | 452534325 |
7 | 130111451 |
oct | 37373355 |
9 | 16472018 |
10 | 8255213 |
11 | 472929a |
12 | 29213a5 |
13 | 1930655 |
14 | 114c661 |
15 | ad0ec8 |
hex | 7df6ed |
8255213 has 2 divisors, whose sum is σ = 8255214. Its totient is φ = 8255212.
The previous prime is 8255197. The next prime is 8255239. The reversal of 8255213 is 3125528.
8255213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is an a-pointer prime, because the next prime (8255239) can be obtained adding 8255213 to its sum of digits (26).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 7828804 + 426409 = 2798^2 + 653^2 .
It is a cyclic number.
It is not a de Polignac number, because 8255213 - 24 = 8255197 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (8255243) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4127606 + 4127607.
It is an arithmetic number, because the mean of its divisors is an integer number (4127607).
Almost surely, 28255213 is an apocalyptic number.
It is an amenable number.
8255213 is a deficient number, since it is larger than the sum of its proper divisors (1).
8255213 is an equidigital number, since it uses as much as digits as its factorization.
8255213 is an evil number, because the sum of its binary digits is even.
The product of its digits is 2400, while the sum is 26.
The square root of 8255213 is about 2873.1886467825. The cubic root of 8255213 is about 202.1045516342.
The spelling of 8255213 in words is "eight million, two hundred fifty-five thousand, two hundred thirteen".
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