Base | Representation |
---|---|
bin | 110001110010… |
… | …001101101011 |
3 | 220120001020102 |
4 | 301302031223 |
5 | 11320110411 |
6 | 1143420015 |
7 | 215633531 |
oct | 61621553 |
9 | 26501212 |
10 | 13050731 |
11 | 7404231 |
12 | 445460b |
13 | 291c335 |
14 | 1a3a151 |
15 | 122bd3b |
hex | c7236b |
13050731 has 2 divisors, whose sum is σ = 13050732. Its totient is φ = 13050730.
The previous prime is 13050707. The next prime is 13050733. The reversal of 13050731 is 13705031.
It is a happy number.
It is a strong prime.
It is an emirp because it is prime and its reverse (13705031) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13050731 - 222 = 8856427 is a prime.
It is a super-2 number, since 2×130507312 = 340643159268722, which contains 22 as substring.
Together with 13050733, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (13050733) 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, 6525365 + 6525366.
It is an arithmetic number, because the mean of its divisors is an integer number (6525366).
Almost surely, 213050731 is an apocalyptic number.
13050731 is a deficient number, since it is larger than the sum of its proper divisors (1).
13050731 is an equidigital number, since it uses as much as digits as its factorization.
13050731 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 315, while the sum is 20.
The square root of 13050731 is about 3612.5795492972. The cubic root of 13050731 is about 235.4389321811.
Adding to 13050731 its reverse (13705031), we get a palindrome (26755762).
The spelling of 13050731 in words is "thirteen million, fifty thousand, seven hundred thirty-one".
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