The Number

27991

Twenty-Seven Thousand Nine Hundred and Ninety-One

In Base 11 Undecimal Is

1a03711

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

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

Nearby Numbers

Positive, nonzero integers within three units

27988
1a03411
Twenty-Seven Thousand Nine Hundred and Eighty-Eight in Base 11 Undecimal
27989
1a03511
Twenty-Seven Thousand Nine Hundred and Eighty-Nine in Base 11 Undecimal
27990
1a03611
Twenty-Seven Thousand Nine Hundred and Ninety in Base 11 Undecimal
27992
1a03811
Twenty-Seven Thousand Nine Hundred and Ninety-Two in Base 11 Undecimal
27993
1a03911
Twenty-Seven Thousand Nine Hundred and Ninety-Three in Base 11 Undecimal
27994
1a03a11
Twenty-Seven Thousand Nine Hundred and Ninety-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.

2.7991e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000058321549223477111

The reciprocal of 27991 in Base 11 Undecimal.

Palindrome?

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

The number 1a03711 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 ninety-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 nine hundred and ninety-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 nine hundred and ninety-one has the following 2 prime factors:

23
2111
Twenty-Three in Base 11 Undecimal
1217
a0711
One Thousand Two Hundred and Seventeen in Base 11 Undecimal

Prime Factorization

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

21111 · a07111 = 1a03711

Base Conversions

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