Search a number
-
+
65468761 is a prime number
BaseRepresentation
bin1111100110111…
…1100101011001
311120012011020221
43321233211121
5113230000021
610255120041
71423322011
oct371574531
9146164227
1065468761
1133a56716
1219b13021
1310743217
1489a2c41
155b33241
hex3e6f959

65468761 has 2 divisors, whose sum is σ = 65468762. Its totient is φ = 65468760.

The previous prime is 65468743. The next prime is 65468771. The reversal of 65468761 is 16786456.

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., 65108761 + 360000 = 8069^2 + 600^2 .

It is a cyclic number.

It is not a de Polignac number, because 65468761 - 25 = 65468729 is a prime.

It is not a weakly prime, because it can be changed into another prime (65468731) 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, 32734380 + 32734381.

It is an arithmetic number, because the mean of its divisors is an integer number (32734381).

Almost surely, 265468761 is an apocalyptic number.

It is an amenable number.

65468761 is a deficient number, since it is larger than the sum of its proper divisors (1).

65468761 is an equidigital number, since it uses as much as digits as its factorization.

65468761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 43.

The square root of 65468761 is about 8091.2768460855. The cubic root of 65468761 is about 403.0368049436.

The spelling of 65468761 in words is "sixty-five million, four hundred sixty-eight thousand, seven hundred sixty-one".