The Number
1381
One Thousand Three Hundred and Eighty-One
In Base 2 Binary Is
101011001012
The numbers with a 2 subscript use Base 2 Binary notation.
For more familiar numbers: See One Thousand Three 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.
1.381e3
Reciprocal
A number multiplied with its reciprocal is one.
0.000000000010111101110100100110010111110100100000011100001011012
The reciprocal of 1381 in Base 2 Binary.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 101011001012 is not a palindrome.
A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
One thousand three hundred and eighty-one is the 221st prime number. See primes in Base 2 Binary
Not A Composite
Composites have more than just these two factors.
One Thousand Three Hundred and Eighty-One is not a composite number because it has exactly two factors: One and One Thousand Three Hundred and Eighty-One
Prime Factors
The number one thousand three 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
1010110010121
= 101011001012
Base Conversions
The number one thousand three hundred and eighty-one in 35 different bases