The Number

1866

One Thousand Eight Hundred and Sixty-Six

In Base 21 Unovigesimal Is

44i21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

1863
44f21
One Thousand Eight Hundred and Sixty-Three in Base 21 Unovigesimal
1864
44g21
One Thousand Eight Hundred and Sixty-Four in Base 21 Unovigesimal
1865
44h21
One Thousand Eight Hundred and Sixty-Five in Base 21 Unovigesimal
1867
44j21
One Thousand Eight Hundred and Sixty-Seven in Base 21 Unovigesimal
1868
44k21
One Thousand Eight Hundred and Sixty-Eight in Base 21 Unovigesimal
1869
45021
One Thousand Eight Hundred and Sixty-Nine in Base 21 Unovigesimal

Scientific Notation

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

1.866e3

Reciprocal

A number multiplied with its reciprocal is one.

0.004k4ebc3jk094a21

The reciprocal of 1866 in Base 21 Unovigesimal.

Palindrome?

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

The number 44i21 is not a palindrome.

Not A Prime Number

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

One thousand eight hundred and sixty-six is a composite number with 8 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

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

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
311
eh21
Three Hundred and Eleven in Base 21 Unovigesimal

Prime Factorization

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

2211 · 3211 · eh211 = 44i21

Base Conversions

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