The Number

1287

One Thousand Two Hundred and Eighty-Seven

In Base 11 Undecimal Is

a7011

The numbers with a 11 subscript use Base 11 Undecimal 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
a6811
One Thousand Two Hundred and Eighty-Four in Base 11 Undecimal
1285
a6911
One Thousand Two Hundred and Eighty-Five in Base 11 Undecimal
1286
a6a11
One Thousand Two Hundred and Eighty-Six in Base 11 Undecimal
1288
a7111
One Thousand Two Hundred and Eighty-Eight in Base 11 Undecimal
1289
a7211
One Thousand Two Hundred and Eighty-Nine in Base 11 Undecimal
1290
a7311
One Thousand Two Hundred and Ninety in Base 11 Undecimal

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.

0.00104156020830104211

The reciprocal of 1287 in Base 11 Undecimal.

Palindrome?

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

The number a7011 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 11 Undecimal

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
311
Three in Base 11 Undecimal
11
1011
Eleven in Base 11 Undecimal
13
1211
Thirteen in Base 11 Undecimal

Prime Factorization

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

3112 · 10111 · 12111 = a7011

Base Conversions

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