The Number

1989

One Thousand Nine Hundred and Eighty-Nine

In Base 2 Binary Is

111110001012

The numbers with a 2 subscript use Base 2 Binary notation.

For more familiar numbers: See One Thousand Nine Hundred and Eighty-Nine in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

1986
111110000102
One Thousand Nine Hundred and Eighty-Six in Base 2 Binary
1987
111110000112
One Thousand Nine Hundred and Eighty-Seven in Base 2 Binary
1988
111110001002
One Thousand Nine Hundred and Eighty-Eight in Base 2 Binary
1990
111110001102
One Thousand Nine Hundred and Ninety in Base 2 Binary
1991
111110001112
One Thousand Nine Hundred and Ninety-One in Base 2 Binary
1992
111110010002
One Thousand Nine Hundred and Ninety-Two in Base 2 Binary

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

1.989e3

Reciprocal

A number multiplied with its reciprocal is one.

0.000000000010000011110011000000000010000011110011000000000012

The reciprocal of 1989 in Base 2 Binary.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 111110001012 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

One thousand nine hundred and eighty-nine is a composite number with 12 total factors (including 1 and itself).   See primes in Base 2 Binary

A Composite

Composites have more than just these two factors.

One thousand nine hundred and eighty-nine is a composite number with 12 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number one thousand nine hundred and eighty-nine has the following 3 prime factors:

3
112
Three in Base 2 Binary
13
11012
Thirteen in Base 2 Binary
17
100012
Seventeen in Base 2 Binary

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

1122 · 110121 · 1000121 = 111110001012

Base Conversions

The number one thousand nine hundred and eighty-nine in 35 different bases