The Number

27821

Twenty-Seven Thousand Eight Hundred and Twenty-One

In Base 11 Undecimal Is

199a211

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

27818
1999a11
Twenty-Seven Thousand Eight Hundred and Eightteen in Base 11 Undecimal
27819
199a011
Twenty-Seven Thousand Eight Hundred and Nineteen in Base 11 Undecimal
27820
199a111
Twenty-Seven Thousand Eight Hundred and Twenty in Base 11 Undecimal
27822
199a311
Twenty-Seven Thousand Eight Hundred and Twenty-Two in Base 11 Undecimal
27823
199a411
Twenty-Seven Thousand Eight Hundred and Twenty-Three in Base 11 Undecimal
27824
199a511
Twenty-Seven Thousand Eight Hundred and Twenty-Four in Base 11 Undecimal

Scientific Notation

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

2.7821e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00005874a26a532606a11

The reciprocal of 27821 in Base 11 Undecimal.

Palindrome?

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

The number 199a211 is not a palindrome.

Not A Prime Number

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

Twenty-seven thousand eight hundred and twenty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Twenty-seven thousand eight hundred and twenty-one 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-seven thousand eight hundred and twenty-one has the following 2 prime factors:

43
3a11
Forty-Three in Base 11 Undecimal
647
53911
Six Hundred and Forty-Seven in Base 11 Undecimal

Prime Factorization

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

3a111 · 539111 = 199a211

Base Conversions

The number twenty-seven thousand eight hundred and twenty-one in 35 different bases