Number
-64
- Negative
- Even
- Perfect square
- Perfect cube
- 2 digits
-64 is an even 2-digit integer and the negative of 64. It has 7 divisors and a digital root of 1.
Number properties
ParityEvendivisible by 2
SignNegative
Absolute value64
Digit count2
Digit sum10
Digital root1repeated digit sum
PalindromicNoreads differently backwards
Perfect squareYes, 8²
Perfect cubeYes, -4³
Factors & divisors
Prime factorisation−1 × 2^6
Distinct prime factors12
Number of divisors7
Sum of divisors σ(n)127
SquarefreeNohas a repeated prime factor
All divisors1, 2, 4, 8, 16, 32, 647 in total
Arithmetic
Representations
Decimal-64
Binary10000007 bits
Octal100
Hexadecimal40
Base 361S
In wordsminus sixty-four
Ordinalminus sixty-fourth
Scientific notation-6.4 × 10^1
Engineering notation-64
Powers & multiples
-64 to the power 24,096
-64 to the power 3-262,144
-64 to the power 416,777,216
-64 to the power 5-1,073,741,824
First ten multiples-64, -128, -192, -256, -320, -384, -448, -512, -576, -640
Powers of twoExactly 2^6
Divisibility tests
Divisible by 2Yes
Divisible by 3No, remainder 1
Divisible by 4Yes
Divisible by 5No, remainder 4
Divisible by 6No, remainder 4
Divisible by 7No, remainder 1
Divisible by 8Yes
Divisible by 9No, remainder 1
Divisible by 10No, remainder 4
Divisible by 11No, remainder 9
Divisible by 12No, remainder 4
Divisible by 100No, remainder 64
As a percentage & fraction
As a percentage-6,400%
-64% as a decimal-0.64
-64% of 100-64
-64% of 1,000-640
As a fraction of 100-64/100
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Derived from -64
Nerdulate something else
Nothing in mind? Surprise me · today’s page