The Number

20681

Twenty Thousand Six Hundred and Eighty-One

In Base 21 Unovigesimal Is

24ih21

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

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

Nearby Numbers

Positive, nonzero integers within three units

20678
24ie21
Twenty Thousand Six Hundred and Seventy-Eight in Base 21 Unovigesimal
20679
24if21
Twenty Thousand Six Hundred and Seventy-Nine in Base 21 Unovigesimal
20680
24ig21
Twenty Thousand Six Hundred and Eighty in Base 21 Unovigesimal
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

Scientific Notation

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

2.0681e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00098a20ji782g21

The reciprocal of 20681 in Base 21 Unovigesimal.

Palindrome?

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

The number 24ih21 is not a palindrome.

A Prime Number

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

Twenty thousand six hundred and eighty-one is the 2329th prime number.   See primes in Base 21 Unovigesimal

Not A Composite

Composites have more than just these two factors.

Twenty Thousand Six Hundred and Eighty-One is not a composite number because it has exactly two factors: One and Twenty Thousand Six Hundred and Eighty-One

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-one has the following 1 prime factor:

20681
24ih21
Twenty Thousand Six Hundred and Eighty-One in Base 21 Unovigesimal

Prime Factorization

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

24ih211 = 24ih21

Base Conversions

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