Search a number
66064049 is a prime number
BaseRepresentation
bin1111110000000…
…0111010110001
311121022101211122
43330000322301
5113403022144
610315552025
71431351362
oct374007261
9147271748
1066064049
1134322997
121a15b615
13108c116c
148ab9b69
155bee7ee
hex3f00eb1

66064049 has 2 divisors, whose sum is σ = 66064050. Its totient is φ = 66064048.

The previous prime is 66064043. The next prime is 66064087. The reversal of 66064049 is 94046066.

66064049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56731024 + 9333025 = 7532^2 + 3055^2 .

It is a cyclic number.

It is not a de Polignac number, because 66064049 - 224 = 49286833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66064043) 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, 33032024 + 33032025.

It is an arithmetic number, because the mean of its divisors is an integer number (33032025).

Almost surely, 266064049 is an apocalyptic number.

It is an amenable number.

66064049 is a deficient number, since it is larger than the sum of its proper divisors (1).

66064049 is an equidigital number, since it uses as much as digits as its factorization.

66064049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 66064049 is about 8127.9793921983. The cubic root of 66064049 is about 404.2546857483.

The spelling of 66064049 in words is "sixty-six million, sixty-four thousand, forty-nine".