Base | Representation |
---|---|
bin | 100111001000011010101 |
3 | 2102010221011 |
4 | 10321003111 |
5 | 312013021 |
6 | 43252221 |
7 | 13620241 |
oct | 4710325 |
9 | 2363834 |
10 | 1282261 |
11 | 7a6422 |
12 | 51a071 |
13 | 35b846 |
14 | 255421 |
15 | 1a4de1 |
hex | 1390d5 |
1282261 has 2 divisors, whose sum is σ = 1282262. Its totient is φ = 1282260.
The previous prime is 1282241. The next prime is 1282277. The reversal of 1282261 is 1622821.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 799236 + 483025 = 894^2 + 695^2 .
It is a cyclic number.
It is not a de Polignac number, because 1282261 - 27 = 1282133 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 (1282201) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641130 + 641131.
It is an arithmetic number, because the mean of its divisors is an integer number (641131).
21282261 is an apocalyptic number.
It is an amenable number.
1282261 is a deficient number, since it is larger than the sum of its proper divisors (1).
1282261 is an equidigital number, since it uses as much as digits as its factorization.
1282261 is an evil number, because the sum of its binary digits is even.
The product of its digits is 384, while the sum is 22.
The square root of 1282261 is about 1132.3696392963. The cubic root of 1282261 is about 108.6405972484.
The spelling of 1282261 in words is "one million, two hundred eighty-two thousand, two hundred sixty-one".
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