Base | Representation |
---|---|
bin | 100111001110… |
… | …000101000111 |
3 | 201100100021102 |
4 | 213032011013 |
5 | 10113000122 |
6 | 1004210315 |
7 | 153250412 |
oct | 47160507 |
9 | 21310242 |
10 | 10281287 |
11 | 5892535 |
12 | 353999b |
13 | 218c903 |
14 | 1518b79 |
15 | d81492 |
hex | 9ce147 |
10281287 has 2 divisors, whose sum is σ = 10281288. Its totient is φ = 10281286.
The previous prime is 10281269. The next prime is 10281289. The reversal of 10281287 is 78218201.
10281287 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 is a cyclic number.
It is not a de Polignac number, because 10281287 - 212 = 10277191 is a prime.
Together with 10281289, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10281289) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5140643 + 5140644.
It is an arithmetic number, because the mean of its divisors is an integer number (5140644).
Almost surely, 210281287 is an apocalyptic number.
10281287 is a deficient number, since it is larger than the sum of its proper divisors (1).
10281287 is an equidigital number, since it uses as much as digits as its factorization.
10281287 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1792, while the sum is 29.
The square root of 10281287 is about 3206.4446042307. Note that the first 3 decimals coincide. The cubic root of 10281287 is about 217.4448673401. Note that the first 3 decimals are identical.
Adding to 10281287 its reverse (78218201), we get a palindrome (88499488).
The spelling of 10281287 in words is "ten million, two hundred eighty-one thousand, two hundred eighty-seven".
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