The Number

13881

Thirteen Thousand Eight Hundred and Eighty-One

In Base 21 Unovigesimal Is

1aa021

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

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

Nearby Numbers

Positive, nonzero integers within three units

13878
1a9i21
Thirteen Thousand Eight Hundred and Seventy-Eight in Base 21 Unovigesimal
13879
1a9j21
Thirteen Thousand Eight Hundred and Seventy-Nine in Base 21 Unovigesimal
13880
1a9k21
Thirteen Thousand Eight Hundred and Eighty in Base 21 Unovigesimal
13882
1aa121
Thirteen Thousand Eight Hundred and Eighty-Two in Base 21 Unovigesimal
13883
1aa221
Thirteen Thousand Eight Hundred and Eighty-Three in Base 21 Unovigesimal
13884
1aa321
Thirteen Thousand Eight 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.

1.3881e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000e04e1beaihd621

The reciprocal of 13881 in Base 21 Unovigesimal.

Palindrome?

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

The number 1aa021 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 eighty-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 eighty-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 eighty-one has the following 3 prime factors:

3
321
Three in Base 21 Unovigesimal
7
721
Seven in Base 21 Unovigesimal
661
1aa21
Six Hundred and Sixty-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 · 7211 · 1aa211 = 1aa021

Base Conversions

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