The Number

20685

Twenty Thousand Six Hundred and Eighty-Five

In Base 21 Unovigesimal Is

24j021

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

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

Nearby Numbers

Positive, nonzero integers within three units

20682
24ii21
Twenty Thousand Six Hundred and Eighty-Two in Base 21 Unovigesimal
20683
24ij21
Twenty Thousand Six Hundred and Eighty-Three in Base 21 Unovigesimal
20684
24ik21
Twenty Thousand Six Hundred and Eighty-Four in Base 21 Unovigesimal
20686
24j121
Twenty Thousand Six Hundred and Eighty-Six in Base 21 Unovigesimal
20687
24j221
Twenty Thousand Six Hundred and Eighty-Seven in Base 21 Unovigesimal
20688
24j321
Twenty Thousand Six 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.

2.0685e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000989645kgk80721

The reciprocal of 20685 in Base 21 Unovigesimal.

Palindrome?

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

The number 24j021 is not a palindrome.

Not A Prime Number

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

Twenty thousand six hundred and eighty-five is a composite number with 16 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty thousand six hundred and eighty-five is a composite number with 16 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 thousand six hundred and eighty-five has the following 4 prime factors:

3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
7
721
Seven in Base 21 Unovigesimal
197
9821
One Hundred and Ninety-Seven in Base 21 Unovigesimal

Prime Factorization

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

3211 · 5211 · 7211 · 98211 = 24j021

Base Conversions

The number twenty thousand six hundred and eighty-five in 35 different bases