The Number

19921

Nineteen Thousand Nine Hundred and Twenty-One

In Base 13 Tridecimal Is

90b513

The numbers with a 13 subscript use Base 13 Tridecimal 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
90b213
Nineteen Thousand Nine Hundred and Eightteen in Base 13 Tridecimal
19919
90b313
Nineteen Thousand Nine Hundred and Nineteen in Base 13 Tridecimal
19920
90b413
Nineteen Thousand Nine Hundred and Twenty in Base 13 Tridecimal
19922
90b613
Nineteen Thousand Nine Hundred and Twenty-Two in Base 13 Tridecimal
19923
90b713
Nineteen Thousand Nine Hundred and Twenty-Three in Base 13 Tridecimal
19924
90b813
Nineteen Thousand Nine Hundred and Twenty-Four in Base 13 Tridecimal

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.

0.0001583b388058016c13

The reciprocal of 19921 in Base 13 Tridecimal.

Palindrome?

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

The number 90b513 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 13 Tridecimal

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
b13
Eleven in Base 13 Tridecimal
1811
a9413
One Thousand Eight Hundred and Eleven in Base 13 Tridecimal

Prime Factorization

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

b131 · a94131 = 90b513

Base Conversions

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