The Number

2185

Two Thousand One Hundred and Eighty-Five

In Base 21 Unovigesimal Is

4k121

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

For more familiar numbers: See Two Thousand One Hundred and Eighty-Five in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

2182
4jj21
Two Thousand One Hundred and Eighty-Two in Base 21 Unovigesimal
2183
4jk21
Two Thousand One Hundred and Eighty-Three in Base 21 Unovigesimal
2184
4k021
Two Thousand One Hundred and Eighty-Four in Base 21 Unovigesimal
2186
4k221
Two Thousand One Hundred and Eighty-Six in Base 21 Unovigesimal
2187
4k321
Two Thousand One Hundred and Eighty-Seven in Base 21 Unovigesimal
2188
4k421
Two Thousand One Hundred and Eighty-Eight in Base 21 Unovigesimal

Scientific Notation

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

2.185e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0045034h29e0i7g21

The reciprocal of 2185 in Base 21 Unovigesimal.

Palindrome?

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

The number 4k121 is not a palindrome.

Not A Prime Number

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

Two thousand one hundred and eighty-five 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.

Two thousand one hundred and eighty-five 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 two thousand one hundred and eighty-five has the following 3 prime factors:

5
521
Five in Base 21 Unovigesimal
19
j21
Nineteen in Base 21 Unovigesimal
23
1221
Twenty-Three in Base 21 Unovigesimal

Prime Factorization

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

5211 · j211 · 12211 = 4k121

Base Conversions

The number two thousand one hundred and eighty-five in 35 different bases