Base | Representation |
---|---|
bin | 100111000111110… |
… | …0110001101010011 |
3 | 10101111002122122201 |
4 | 1032033212031103 |
5 | 10142023232012 |
6 | 334131544031 |
7 | 44346602152 |
oct | 11617461523 |
9 | 3344078581 |
10 | 1312711507 |
11 | 613a9a648 |
12 | 30775b017 |
13 | 17bc68a93 |
14 | c64ad599 |
15 | 7a3a1857 |
hex | 4e3e6353 |
1312711507 has 2 divisors, whose sum is σ = 1312711508. Its totient is φ = 1312711506.
The previous prime is 1312711489. The next prime is 1312711529. The reversal of 1312711507 is 7051172131.
It is a weak prime.
It is an emirp because it is prime and its reverse (7051172131) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1312711507 - 215 = 1312678739 is a prime.
It is a super-2 number, since 2×13127115072 = 3446423001220422098, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (1312715507) 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, 656355753 + 656355754.
It is an arithmetic number, because the mean of its divisors is an integer number (656355754).
Almost surely, 21312711507 is an apocalyptic number.
1312711507 is a deficient number, since it is larger than the sum of its proper divisors (1).
1312711507 is an equidigital number, since it uses as much as digits as its factorization.
1312711507 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1470, while the sum is 28.
The square root of 1312711507 is about 36231.3608218074. The cubic root of 1312711507 is about 1094.9385944451.
Adding to 1312711507 its reverse (7051172131), we get a palindrome (8363883638).
The spelling of 1312711507 in words is "one billion, three hundred twelve million, seven hundred eleven thousand, five hundred seven".
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