Search a number
-
+
64610401 is a prime number
BaseRepresentation
bin1111011001111…
…0000001100001
311111120112210211
43312132001201
5113020013101
610224454121
71413115342
oct366360141
9144515724
1064610401
113351a829
121977a341
131050260b
14881c0c9
155a13c51
hex3d9e061

64610401 has 2 divisors, whose sum is σ = 64610402. Its totient is φ = 64610400.

The previous prime is 64610327. The next prime is 64610411. The reversal of 64610401 is 10401646.

64610401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49000000 + 15610401 = 7000^2 + 3951^2 .

It is a cyclic number.

It is not a de Polignac number, because 64610401 - 29 = 64609889 is a prime.

It is not a weakly prime, because it can be changed into another prime (64610411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32305200 + 32305201.

It is an arithmetic number, because the mean of its divisors is an integer number (32305201).

Almost surely, 264610401 is an apocalyptic number.

It is an amenable number.

64610401 is a deficient number, since it is larger than the sum of its proper divisors (1).

64610401 is an equidigital number, since it uses as much as digits as its factorization.

64610401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 64610401 is about 8038.0595295133. The cubic root of 64610401 is about 401.2676471828.

The spelling of 64610401 in words is "sixty-four million, six hundred ten thousand, four hundred one".