The Number

1287

One Thousand Two Hundred and Eighty-Seven

In Base 2 Binary Is

101000001112

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

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

Nearby Numbers

Positive, nonzero integers within three units

1284
101000001002
One Thousand Two Hundred and Eighty-Four in Base 2 Binary
1285
101000001012
One Thousand Two Hundred and Eighty-Five in Base 2 Binary
1286
101000001102
One Thousand Two Hundred and Eighty-Six in Base 2 Binary
1288
101000010002
One Thousand Two Hundred and Eighty-Eight in Base 2 Binary
1289
101000010012
One Thousand Two Hundred and Eighty-Nine in Base 2 Binary
1290
101000010102
One Thousand Two Hundred and Ninety in Base 2 Binary

Scientific Notation

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

1.287e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0000000000110010111010111110100011101101000110100111010010012

The reciprocal of 1287 in Base 2 Binary.

Palindrome?

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

The number 101000001112 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 two hundred and eighty-seven 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 two hundred and eighty-seven 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 two hundred and eighty-seven has the following 3 prime factors:

3
112
Three in Base 2 Binary
11
10112
Eleven in Base 2 Binary
13
11012
Thirteen 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 · 101121 · 110121 = 101000001112

Base Conversions

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