The Number

20987

Twenty Thousand Nine Hundred and Eighty-Seven

In Base 16 Hexadecimal Is

51fb16

The numbers with a 16 subscript use Base 16 Hexadecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

20984
51f816
Twenty Thousand Nine Hundred and Eighty-Four in Base 16 Hexadecimal
20985
51f916
Twenty Thousand Nine Hundred and Eighty-Five in Base 16 Hexadecimal
20986
51fa16
Twenty Thousand Nine Hundred and Eighty-Six in Base 16 Hexadecimal
20988
51fc16
Twenty Thousand Nine Hundred and Eighty-Eight in Base 16 Hexadecimal
20989
51fd16
Twenty Thousand Nine Hundred and Eighty-Nine in Base 16 Hexadecimal
20990
51fe16
Twenty Thousand Nine Hundred and Ninety in Base 16 Hexadecimal

Scientific Notation

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

2.0987e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00031f68f08b8ba1816

The reciprocal of 20987 in Base 16 Hexadecimal.

Palindrome?

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

The number 51fb16 is not a palindrome.

Not A Prime Number

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

Twenty thousand nine hundred and eighty-seven is a composite number with 4 total factors (including 1 and itself).   See primes in Base 16 Hexadecimal

A Composite

Composites have more than just these two factors.

Twenty thousand nine hundred and eighty-seven is a composite number with 4 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 twenty thousand nine hundred and eighty-seven has the following 2 prime factors:

31
1f16
Thirty-One in Base 16 Hexadecimal
677
2a516
Six Hundred and Seventy-Seven in Base 16 Hexadecimal

Prime Factorization

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

1f161 · 2a5161 = 51fb16

Base Conversions

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