The Number

21861

Twenty-One Thousand Eight Hundred and Sixty-One

In Base 27 Heptavigesimal Is

12qi27

The numbers with a 27 subscript use Base 27 Heptavigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21858
12qf27
Twenty-One Thousand Eight Hundred and Fifty-Eight in Base 27 Heptavigesimal
21859
12qg27
Twenty-One Thousand Eight Hundred and Fifty-Nine in Base 27 Heptavigesimal
21860
12qh27
Twenty-One Thousand Eight Hundred and Sixty in Base 27 Heptavigesimal
21862
12qj27
Twenty-One Thousand Eight Hundred and Sixty-Two in Base 27 Heptavigesimal
21863
12qk27
Twenty-One Thousand Eight Hundred and Sixty-Three in Base 27 Heptavigesimal
21864
12ql27
Twenty-One Thousand Eight Hundred and Sixty-Four in Base 27 Heptavigesimal

Scientific Notation

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

2.1861e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000o89qlo6fa1p27

The reciprocal of 21861 in Base 27 Heptavigesimal.

Palindrome?

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

The number 12qi27 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-one is a composite number with 12 total factors (including 1 and itself).   See primes in Base 27 Heptavigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand eight hundred and sixty-one 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-one has the following 3 prime factors:

3
327
Three in Base 27 Heptavigesimal
7
727
Seven in Base 27 Heptavigesimal
347
cn27
Three Hundred and Forty-Seven in Base 27 Heptavigesimal

Prime Factorization

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

3272 · 7271 · cn271 = 12qi27

Base Conversions

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