Base | Representation |
---|---|
bin | 111101000000101110… |
… | …1011111110001000001 |
3 | 110112012002011000211022 |
4 | 1322001131133301001 |
5 | 4121312334341113 |
6 | 140105030555225 |
7 | 12315552140552 |
oct | 1720135376101 |
9 | 415162130738 |
10 | 131021012033 |
11 | 50624a4462a |
12 | 21486808b15 |
13 | c48058a972 |
14 | 64acd26329 |
15 | 361c7e5908 |
hex | 1e8175fc41 |
131021012033 has 2 divisors, whose sum is σ = 131021012034. Its totient is φ = 131021012032.
The previous prime is 131021012027. The next prime is 131021012093. The reversal of 131021012033 is 330210120131.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 72249676849 + 58771335184 = 268793^2 + 242428^2 .
It is a cyclic number.
It is not a de Polignac number, because 131021012033 - 28 = 131021011777 is a prime.
It is not a weakly prime, because it can be changed into another prime (131021012093) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65510506016 + 65510506017.
It is an arithmetic number, because the mean of its divisors is an integer number (65510506017).
Almost surely, 2131021012033 is an apocalyptic number.
It is an amenable number.
131021012033 is a deficient number, since it is larger than the sum of its proper divisors (1).
131021012033 is an equidigital number, since it uses as much as digits as its factorization.
131021012033 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 131021012033 its reverse (330210120131), we get a palindrome (461231132164).
The spelling of 131021012033 in words is "one hundred thirty-one billion, twenty-one million, twelve thousand, thirty-three".
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