The Number

21866

Twenty-One Thousand Eight Hundred and Sixty-Six

In Base 22 Duovigesimal Is

213k22

The numbers with a 22 subscript use Base 22 Duovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21863
213h22
Twenty-One Thousand Eight Hundred and Sixty-Three in Base 22 Duovigesimal
21864
213i22
Twenty-One Thousand Eight Hundred and Sixty-Four in Base 22 Duovigesimal
21865
213j22
Twenty-One Thousand Eight Hundred and Sixty-Five in Base 22 Duovigesimal
21867
213l22
Twenty-One Thousand Eight Hundred and Sixty-Seven in Base 22 Duovigesimal
21868
214022
Twenty-One Thousand Eight Hundred and Sixty-Eight in Base 22 Duovigesimal
21869
214122
Twenty-One Thousand Eight Hundred and Sixty-Nine in Base 22 Duovigesimal

Scientific Notation

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

2.1866e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000aff4fji05eed22

The reciprocal of 21866 in Base 22 Duovigesimal.

Palindrome?

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

The number 213k22 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 eight hundred and sixty-six is a composite number with 12 total factors (including 1 and itself).   See primes in Base 22 Duovigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand eight hundred and sixty-six is a composite number with 12 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 eight hundred and sixty-six has the following 3 prime factors:

2
222
Two in Base 22 Duovigesimal
13
d22
Thirteen in Base 22 Duovigesimal
29
1722
Twenty-Nine in Base 22 Duovigesimal

Prime Factorization

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

2221 · d221 · 17222 = 213k22

Base Conversions

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