Base | Representation |
---|---|
bin | 110001111011… |
… | …111001110111 |
3 | 220122001200111 |
4 | 301323321313 |
5 | 11322343143 |
6 | 1144323451 |
7 | 216160333 |
oct | 61737167 |
9 | 26561614 |
10 | 13090423 |
11 | 7431035 |
12 | 4473587 |
13 | 2934418 |
14 | 1a4a7c3 |
15 | 123899d |
hex | c7be77 |
13090423 has 2 divisors, whose sum is σ = 13090424. Its totient is φ = 13090422.
The previous prime is 13090421. The next prime is 13090457. The reversal of 13090423 is 32409031.
13090423 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 is an emirp because it is prime and its reverse (32409031) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13090423 - 21 = 13090421 is a prime.
It is a super-4 number, since 4×130904234 (a number of 30 digits) contains 4444 as substring.
Together with 13090421, it forms a pair of twin primes.
It is a plaindrome in base 15.
It is a junction number, because it is equal to n+sod(n) for n = 13090394 and 13090403.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13090421) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6545211 + 6545212.
It is an arithmetic number, because the mean of its divisors is an integer number (6545212).
Almost surely, 213090423 is an apocalyptic number.
13090423 is a deficient number, since it is larger than the sum of its proper divisors (1).
13090423 is an equidigital number, since it uses as much as digits as its factorization.
13090423 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 648, while the sum is 22.
The square root of 13090423 is about 3618.0689600946. The cubic root of 13090423 is about 235.6773756365.
Adding to 13090423 its reverse (32409031), we get a palindrome (45499454).
The spelling of 13090423 in words is "thirteen million, ninety thousand, four hundred twenty-three".
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