Search a number
-
+
130765801 is a prime number
BaseRepresentation
bin1111100101101…
…01001111101001
3100010001120221211
413302311033221
5231434001201
620550433121
73145330255
oct762651751
9303046854
10130765801
11678a5311
12379627a1
132112621a
141351d265
15b730651
hex7cb53e9

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".