The Number
281
Two Hundred and Eighty-One
In Base 2 Binary Is
1000110012
The numbers with a 2 subscript use Base 2 Binary notation.
For more familiar numbers: See Two Hundred and Eighty-One in Base 10 Decimal
Nearby Numbers
Positive, nonzero integers within three units
Scientific Notation
Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.
2.81e2
Reciprocal
A number multiplied with its reciprocal is one.
0.0000000011101001001110010110010100011111111000101101100011012
The reciprocal of 281 in Base 2 Binary.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 1000110012 is not a palindrome.
A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Two hundred and eighty-one is the 60th prime number. See primes in Base 2 Binary
Not A Composite
Composites have more than just these two factors.
Two Hundred and Eighty-One is not a composite number because it has exactly two factors: One and Two Hundred and Eighty-One
Prime Factors
The number two hundred and eighty-one has the following 1 prime factor:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
10001100121
= 1000110012
Base Conversions
The number two hundred and eighty-one in 35 different bases