Base | Representation |
---|---|
bin | 1010101110101110000001 |
3 | 12021220102211 |
4 | 22232232001 |
5 | 1210002201 |
6 | 140142121 |
7 | 32623405 |
oct | 12565601 |
9 | 5256384 |
10 | 2812801 |
11 | 1651332 |
12 | b37941 |
13 | 7763a4 |
14 | 533105 |
15 | 3a8651 |
hex | 2aeb81 |
2812801 has 2 divisors, whose sum is σ = 2812802. Its totient is φ = 2812800.
The previous prime is 2812753. The next prime is 2812811. The reversal of 2812801 is 1082182.
2812801 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., 2689600 + 123201 = 1640^2 + 351^2 .
It is a cyclic number.
It is not a de Polignac number, because 2812801 - 217 = 2681729 is a prime.
It is not a weakly prime, because it can be changed into another prime (2812811) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1406400 + 1406401.
It is an arithmetic number, because the mean of its divisors is an integer number (1406401).
22812801 is an apocalyptic number.
It is an amenable number.
2812801 is a deficient number, since it is larger than the sum of its proper divisors (1).
2812801 is an equidigital number, since it uses as much as digits as its factorization.
2812801 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 256, while the sum is 22.
The square root of 2812801 is about 1677.1407215854. The cubic root of 2812801 is about 141.1604397409.
Adding to 2812801 its reverse (1082182), we get a palindrome (3894983).
The spelling of 2812801 in words is "two million, eight hundred twelve thousand, eight hundred one".
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