Base | Representation |
---|---|
bin | 1111100000000… |
… | …10000001100101 |
3 | 100001200021222112 |
4 | 13300002001211 |
5 | 231242003332 |
6 | 20523010405 |
7 | 3136152134 |
oct | 760020145 |
9 | 301607875 |
10 | 130031717 |
11 | 67443832 |
12 | 37669a05 |
13 | 20c2a05a |
14 | 133ab91b |
15 | b637db2 |
hex | 7c02065 |
130031717 has 2 divisors, whose sum is σ = 130031718. Its totient is φ = 130031716.
The previous prime is 130031683. The next prime is 130031723. The reversal of 130031717 is 717130031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 115047076 + 14984641 = 10726^2 + 3871^2 .
It is a cyclic number.
It is not a de Polignac number, because 130031717 - 216 = 129966181 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 130031692 and 130031701.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130031767) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65015858 + 65015859.
It is an arithmetic number, because the mean of its divisors is an integer number (65015859).
Almost surely, 2130031717 is an apocalyptic number.
It is an amenable number.
130031717 is a deficient number, since it is larger than the sum of its proper divisors (1).
130031717 is an equidigital number, since it uses as much as digits as its factorization.
130031717 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 441, while the sum is 23.
The square root of 130031717 is about 11403.1450486258. The cubic root of 130031717 is about 506.6208964791.
Adding to 130031717 its reverse (717130031), we get a palindrome (847161748).
The spelling of 130031717 in words is "one hundred thirty million, thirty-one thousand, seven hundred seventeen".
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