The Number

21166

Twenty-One Thousand One Hundred and Sixty-Six

In Base 11 Undecimal Is

149a211

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

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

Nearby Numbers

Positive, nonzero integers within three units

21163
1499a11
Twenty-One Thousand One Hundred and Sixty-Three in Base 11 Undecimal
21164
149a011
Twenty-One Thousand One Hundred and Sixty-Four in Base 11 Undecimal
21165
149a111
Twenty-One Thousand One Hundred and Sixty-Five in Base 11 Undecimal
21167
149a311
Twenty-One Thousand One Hundred and Sixty-Seven in Base 11 Undecimal
21168
149a411
Twenty-One Thousand One Hundred and Sixty-Eight in Base 11 Undecimal
21169
149a511
Twenty-One Thousand One Hundred and Sixty-Nine in Base 11 Undecimal

Scientific Notation

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

2.1166e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000076775680a03a78311

The reciprocal of 21166 in Base 11 Undecimal.

Palindrome?

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

The number 149a211 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand one hundred and sixty-six is a composite number with 8 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand one hundred and sixty-six is a composite number with 8 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-one thousand one hundred and sixty-six has the following 3 prime factors:

2
211
Two in Base 11 Undecimal
19
1811
Nineteen in Base 11 Undecimal
557
46711
Five Hundred and Fifty-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

2111 · 18111 · 467111 = 149a211

Base Conversions

The number twenty-one thousand one hundred and sixty-six in 35 different bases