Base | Representation |
---|---|
bin | 1111101001101… |
… | …11111111110001 |
3 | 100011001210121101 |
4 | 13310313333301 |
5 | 232103120421 |
6 | 21010124401 |
7 | 3153020542 |
oct | 764677761 |
9 | 304053541 |
10 | 131301361 |
11 | 68130724 |
12 | 37b80701 |
13 | 21282c19 |
14 | 1361c4c9 |
15 | b7d9191 |
hex | 7d37ff1 |
131301361 has 2 divisors, whose sum is σ = 131301362. Its totient is φ = 131301360.
The previous prime is 131301329. The next prime is 131301389. The reversal of 131301361 is 163103131.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 68574961 + 62726400 = 8281^2 + 7920^2 .
It is a cyclic number.
It is not a de Polignac number, because 131301361 - 25 = 131301329 is a prime.
It is not a weakly prime, because it can be changed into another prime (131301161) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65650680 + 65650681.
It is an arithmetic number, because the mean of its divisors is an integer number (65650681).
Almost surely, 2131301361 is an apocalyptic number.
It is an amenable number.
131301361 is a deficient number, since it is larger than the sum of its proper divisors (1).
131301361 is an equidigital number, since it uses as much as digits as its factorization.
131301361 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 162, while the sum is 19.
The square root of 131301361 is about 11458.6805959500. The cubic root of 131301361 is about 508.2644594555.
Adding to 131301361 its reverse (163103131), we get a palindrome (294404492).
The spelling of 131301361 in words is "one hundred thirty-one million, three hundred one thousand, three hundred sixty-one".
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