Search a number
-
+
130717789 is a prime number
BaseRepresentation
bin1111100101010…
…01100001011101
3100002222011002121
413302221201131
5231430432124
620545422541
73145040266
oct762514135
9302864077
10130717789
1167872234
123793aa51
132110a407
141350996d
15b7212e4
hex7ca985d

130717789 has 2 divisors, whose sum is σ = 130717790. Its totient is φ = 130717788.

The previous prime is 130717759. The next prime is 130717801. The reversal of 130717789 is 987717031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115390564 + 15327225 = 10742^2 + 3915^2 .

It is a cyclic number.

It is not a de Polignac number, because 130717789 - 25 = 130717757 is a prime.

It is a super-2 number, since 2×1307177892 = 34174280722097042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130717759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65358894 + 65358895.

It is an arithmetic number, because the mean of its divisors is an integer number (65358895).

Almost surely, 2130717789 is an apocalyptic number.

It is an amenable number.

130717789 is a deficient number, since it is larger than the sum of its proper divisors (1).

130717789 is an equidigital number, since it uses as much as digits as its factorization.

130717789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74088, while the sum is 43.

The square root of 130717789 is about 11433.1880505833. The cubic root of 130717789 is about 507.5103433226.

The spelling of 130717789 in words is "one hundred thirty million, seven hundred seventeen thousand, seven hundred eighty-nine".