64 (number) 64 (number) 64 (sixty-four) is the natural number following 63 and preceding 65. Sixty-four is the square of 8, the cube of 4, and the sixth power of 2. It is the smallest number with exactly seven divisors. It is the lowest positive power of two that is adjacent to neither a Mersenne prime nor a Fermat prime. 64 is the sum of Euler's totient function for the first fourteen integers. It is also a dodecagonal number and a centered triangular number. 64 is also the first whole number that is both a perfect square and a perfect cube. Since
The Cube (building) useful information for residents and present 24 hours. The residents in West Wing is strictly restricted to use concierge service offered by the Cube, even though a concierge desk is present at the entrance of West Wing but never taken in operation as concierge service. The third element is the two storey crown that sits on top of the cube element. It is two storeys in height and will house facilities for the boutique hotel and a rooftop restaurant with skybar, offering panoramic views of the city centre. Unlike the rest of the Cube, the crown is constructed from a