Search a number
-
+
130508789 is a prime number
BaseRepresentation
bin1111100011101…
…10011111110101
3100002120112101212
413301312133311
5231402240124
620541131205
73143210045
oct761663765
9302515355
10130508789
116773a204
1237859b05
1321066248
1413493725
15b6ce40e
hex7c767f5

130508789 has 2 divisors, whose sum is σ = 130508790. Its totient is φ = 130508788.

The previous prime is 130508773. The next prime is 130508797. The reversal of 130508789 is 987805031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126675025 + 3833764 = 11255^2 + 1958^2 .

It is a cyclic number.

It is not a de Polignac number, because 130508789 - 24 = 130508773 is a prime.

It is a super-3 number, since 3×1305087893 (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130508089) 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, 65254394 + 65254395.

It is an arithmetic number, because the mean of its divisors is an integer number (65254395).

Almost surely, 2130508789 is an apocalyptic number.

It is an amenable number.

130508789 is a deficient number, since it is larger than the sum of its proper divisors (1).

130508789 is an equidigital number, since it uses as much as digits as its factorization.

130508789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 130508789 is about 11424.0443363986. The cubic root of 130508789 is about 507.2397189922.

The spelling of 130508789 in words is "one hundred thirty million, five hundred eight thousand, seven hundred eighty-nine".