The Number

20421

Twenty Thousand Four Hundred and Twenty-One

In Base 21 Unovigesimal Is

246921

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

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

Nearby Numbers

Positive, nonzero integers within three units

20418
246621
Twenty Thousand Four Hundred and Eightteen in Base 21 Unovigesimal
20419
246721
Twenty Thousand Four Hundred and Nineteen in Base 21 Unovigesimal
20420
246821
Twenty Thousand Four Hundred and Twenty in Base 21 Unovigesimal
20422
246a21
Twenty Thousand Four Hundred and Twenty-Two in Base 21 Unovigesimal
20423
246b21
Twenty Thousand Four Hundred and Twenty-Three in Base 21 Unovigesimal
20424
246c21
Twenty Thousand Four Hundred and Twenty-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.

2.0421e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0009akii23a1dgc21

The reciprocal of 20421 in Base 21 Unovigesimal.

Palindrome?

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

The number 246921 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 four hundred and twenty-one is a composite number with 6 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty thousand four hundred and twenty-one is a composite number with 6 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 four hundred and twenty-one has the following 2 prime factors:

3
321
Three in Base 21 Unovigesimal
2269
53121
Two Thousand Two Hundred and Sixty-Nine in Base 21 Unovigesimal

Prime Factorization

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

3212 · 531211 = 246921

Base Conversions

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