Base | Representation |
---|---|
bin | 100111001110… |
… | …010110001101 |
3 | 201100101202221 |
4 | 213032112031 |
5 | 10113014011 |
6 | 1004215341 |
7 | 153253534 |
oct | 47162615 |
9 | 21311687 |
10 | 10282381 |
11 | 589333a |
12 | 353a551 |
13 | 2190265 |
14 | 151931b |
15 | d81971 |
hex | 9ce58d |
10282381 has 2 divisors, whose sum is σ = 10282382. Its totient is φ = 10282380.
The previous prime is 10282373. The next prime is 10282409. The reversal of 10282381 is 18328201.
10282381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6421156 + 3861225 = 2534^2 + 1965^2 .
It is an emirp because it is prime and its reverse (18328201) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 10282381 - 23 = 10282373 is a prime.
It is a super-2 number, since 2×102823812 = 211454718058322, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10282361) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5141190 + 5141191.
It is an arithmetic number, because the mean of its divisors is an integer number (5141191).
Almost surely, 210282381 is an apocalyptic number.
It is an amenable number.
10282381 is a deficient number, since it is larger than the sum of its proper divisors (1).
10282381 is an equidigital number, since it uses as much as digits as its factorization.
10282381 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 768, while the sum is 25.
The square root of 10282381 is about 3206.6151936271. The cubic root of 10282381 is about 217.4525796122.
The spelling of 10282381 in words is "ten million, two hundred eighty-two thousand, three hundred eighty-one".
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