The Number

13821

Thirteen Thousand Eight Hundred and Twenty-One

In Base 21 Unovigesimal Is

1a7321

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

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

Nearby Numbers

Positive, nonzero integers within three units

13818
1a7021
Thirteen Thousand Eight Hundred and Eightteen in Base 21 Unovigesimal
13819
1a7121
Thirteen Thousand Eight Hundred and Nineteen in Base 21 Unovigesimal
13820
1a7221
Thirteen Thousand Eight Hundred and Twenty in Base 21 Unovigesimal
13822
1a7421
Thirteen Thousand Eight Hundred and Twenty-Two in Base 21 Unovigesimal
13823
1a7521
Thirteen Thousand Eight Hundred and Twenty-Three in Base 21 Unovigesimal
13824
1a7621
Thirteen Thousand Eight 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.

1.3821e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000e1aa7a3fg86f21

The reciprocal of 13821 in Base 21 Unovigesimal.

Palindrome?

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

The number 1a7321 is not a palindrome.

Not A Prime Number

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

Thirteen thousand eight hundred and twenty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Thirteen thousand eight hundred and twenty-one is a composite number with 8 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 thirteen thousand eight hundred and twenty-one has the following 3 prime factors:

3
321
Three in Base 21 Unovigesimal
17
h21
Seventeen in Base 21 Unovigesimal
271
cj21
Two Hundred and Seventy-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

3211 · h211 · cj211 = 1a7321

Base Conversions

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