The Number

27981

Twenty-Seven Thousand Nine Hundred and Eighty-One

In Base 11 Undecimal Is

1a02811

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

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

Nearby Numbers

Positive, nonzero integers within three units

27978
1a02511
Twenty-Seven Thousand Nine Hundred and Seventy-Eight in Base 11 Undecimal
27979
1a02611
Twenty-Seven Thousand Nine Hundred and Seventy-Nine in Base 11 Undecimal
27980
1a02711
Twenty-Seven Thousand Nine Hundred and Eighty in Base 11 Undecimal
27982
1a02911
Twenty-Seven Thousand Nine Hundred and Eighty-Two in Base 11 Undecimal
27983
1a02a11
Twenty-Seven Thousand Nine Hundred and Eighty-Three in Base 11 Undecimal
27984
1a03011
Twenty-Seven Thousand Nine Hundred and Eighty-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.

2.7981e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000058349667267aa3311

The reciprocal of 27981 in Base 11 Undecimal.

Palindrome?

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

The number 1a02811 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 nine hundred and eighty-one is a composite number with 6 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 nine hundred and eighty-one is a composite number with 6 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 nine hundred and eighty-one has the following 2 prime factors:

3
311
Three in Base 11 Undecimal
3109
237711
Three Thousand One Hundred and Nine 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 · 2377111 = 1a02811

Base Conversions

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