The Number
2181
Two Thousand One Hundred and Eighty-One
In Base 2 Binary Is
1000100001012
The numbers with a 2 subscript use Base 2 Binary notation.
For more familiar numbers: See Two Thousand One 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.
2.181e3
Reciprocal
A number multiplied with its reciprocal is one.
0.00000000000111100000110001110001001001101101101000010110010011012
The reciprocal of 2181 in Base 2 Binary.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 1000100001012 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Two thousand one hundred and eighty-one is a composite number with 4 total factors (including 1 and itself). See primes in Base 2 Binary
A Composite
Composites have more than just these two factors.
Two thousand one hundred and eighty-one is a composite number with 4 total factors (including 1 and itself).
Prime Factors
The number two thousand one hundred and eighty-one has the following 2 prime factors:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
1121
·
101101011121
= 1000100001012
Base Conversions
The number two thousand one hundred and eighty-one in 35 different bases