Base | Representation |
---|---|
bin | 1111100101101… |
… | …01001111101001 |
3 | 100010001120221211 |
4 | 13302311033221 |
5 | 231434001201 |
6 | 20550433121 |
7 | 3145330255 |
oct | 762651751 |
9 | 303046854 |
10 | 130765801 |
11 | 678a5311 |
12 | 379627a1 |
13 | 2112621a |
14 | 1351d265 |
15 | b730651 |
hex | 7cb53e9 |
130765801 has 2 divisors, whose sum is σ = 130765802. Its totient is φ = 130765800.
The previous prime is 130765783. The next prime is 130765823. The reversal of 130765801 is 108567031.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 80568576 + 50197225 = 8976^2 + 7085^2 .
It is an emirp because it is prime and its reverse (108567031) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 130765801 - 223 = 122377193 is a prime.
It is a super-2 number, since 2×1307658012 = 34199389422343202, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (130765861) 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, 65382900 + 65382901.
It is an arithmetic number, because the mean of its divisors is an integer number (65382901).
Almost surely, 2130765801 is an apocalyptic number.
It is an amenable number.
130765801 is a deficient number, since it is larger than the sum of its proper divisors (1).
130765801 is an equidigital number, since it uses as much as digits as its factorization.
130765801 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 5040, while the sum is 31.
The square root of 130765801 is about 11435.2875346447. The cubic root of 130765801 is about 507.5724710665.
The spelling of 130765801 in words is "one hundred thirty million, seven hundred sixty-five thousand, eight hundred one".
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