The Number

19921

Nineteen Thousand Nine Hundred and Twenty-One

In Base 21 Unovigesimal Is

233d21

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

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

Nearby Numbers

Positive, nonzero integers within three units

19918
233a21
Nineteen Thousand Nine Hundred and Eightteen in Base 21 Unovigesimal
19919
233b21
Nineteen Thousand Nine Hundred and Nineteen in Base 21 Unovigesimal
19920
233c21
Nineteen Thousand Nine Hundred and Twenty in Base 21 Unovigesimal
19922
233e21
Nineteen Thousand Nine Hundred and Twenty-Two in Base 21 Unovigesimal
19923
233f21
Nineteen Thousand Nine Hundred and Twenty-Three in Base 21 Unovigesimal
19924
233g21
Nineteen Thousand Nine 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.

1.9921e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0009g06bcf87ca121

The reciprocal of 19921 in Base 21 Unovigesimal.

Palindrome?

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

The number 233d21 is not a palindrome.

Not A Prime Number

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

Nineteen thousand nine hundred and twenty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Nineteen thousand nine hundred and twenty-one is a composite number with 4 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 nineteen thousand nine hundred and twenty-one has the following 2 prime factors:

11
b21
Eleven in Base 21 Unovigesimal
1811
42521
One Thousand Eight 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

b211 · 425211 = 233d21

Base Conversions

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