Properties of numbers / Online calculators / Number sequence database

Number 256

Prime factorization

Factorization	2 * 2 * 2 * 2 * 2 * 2 * 2 * 2
Divisors	1, 2, 4, 8, 16, 32, 64, 128, 256
Count of divisors	9
Sum of divisors	511

Basic properties

Is prime?	× NO
Previous integer	255
Next integer	257
Previous prime number	251
Next prime number	263
Reciprocal	0.00390625
Square	65536
Square root	16
Natural logarithm	5.545177444479563
Decimal logarithm	2.4082399653118496
Sine	-0.9992080341070626
Cosine	-0.039790759931157715
Tangent	25.111559463448298

Expressions

Binary	100000000
Octal	400
Hexadecimal	100