The Number

1980

One Thousand Nine Hundred and Eighty

In Base 2 Binary Is

111101111002

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

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

Nearby Numbers

Positive, nonzero integers within three units

1977
111101110012
One Thousand Nine Hundred and Seventy-Seven in Base 2 Binary
1978
111101110102
One Thousand Nine Hundred and Seventy-Eight in Base 2 Binary
1979
111101110112
One Thousand Nine Hundred and Seventy-Nine in Base 2 Binary
1981
111101111012
One Thousand Nine Hundred and Eighty-One in Base 2 Binary
1982
111101111102
One Thousand Nine Hundred and Eighty-Two in Base 2 Binary
1983
111101111112
One Thousand Nine Hundred and Eighty-Three in Base 2 Binary

Scientific Notation

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

1.980e3

Reciprocal

A number multiplied with its reciprocal is one.

0.000000000010000100011001010101110110011011101010110010111100012

The reciprocal of 1980 in Base 2 Binary.

Palindrome?

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

The number 111101111002 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 is a composite number with 36 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 is a composite number with 36 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 has the following 4 prime factors:

2
102
Two in Base 2 Binary
3
112
Three in Base 2 Binary
5
1012
Five in Base 2 Binary
11
10112
Eleven in Base 2 Binary

Prime Factorization

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

1022 · 1122 · 10121 · 101121 = 111101111002

Base Conversions

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