Base | Representation |
---|---|
bin | 11000101010010101… |
… | …01101001101001111 |
3 | 1021011201110012202122 |
4 | 30111022231031033 |
5 | 204103421430111 |
6 | 10025443443155 |
7 | 646046253434 |
oct | 142512551517 |
9 | 37151405678 |
10 | 13240030031 |
11 | 5684719588 |
12 | 26960864bb |
13 | 13300333c7 |
14 | 8d85abb8b |
15 | 527566cdb |
hex | 3152ad34f |
13240030031 has 2 divisors, whose sum is σ = 13240030032. Its totient is φ = 13240030030.
The previous prime is 13240030021. The next prime is 13240030057. The reversal of 13240030031 is 13003004231.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 13240030031 - 218 = 13239767887 is a prime.
It is a super-3 number, since 3×132400300313 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a junction number, because it is equal to n+sod(n) for n = 13240029991 and 13240030009.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13240030021) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6620015015 + 6620015016.
It is an arithmetic number, because the mean of its divisors is an integer number (6620015016).
Almost surely, 213240030031 is an apocalyptic number.
13240030031 is a deficient number, since it is larger than the sum of its proper divisors (1).
13240030031 is an equidigital number, since it uses as much as digits as its factorization.
13240030031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 216, while the sum is 17.
Adding to 13240030031 its reverse (13003004231), we get a palindrome (26243034262).
The spelling of 13240030031 in words is "thirteen billion, two hundred forty million, thirty thousand, thirty-one".
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