The Number

13905

Thirteen Thousand Nine Hundred and Five

In Base 21 Unovigesimal Is

1ab321

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

For more familiar numbers: See Thirteen Thousand Nine Hundred and Five in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

13902
1ab021
Thirteen Thousand Nine Hundred and Two in Base 21 Unovigesimal
13903
1ab121
Thirteen Thousand Nine Hundred and Three in Base 21 Unovigesimal
13904
1ab221
Thirteen Thousand Nine Hundred and Four in Base 21 Unovigesimal
13906
1ab421
Thirteen Thousand Nine Hundred and Six in Base 21 Unovigesimal
13907
1ab521
Thirteen Thousand Nine Hundred and Seven in Base 21 Unovigesimal
13908
1ab621
Thirteen Thousand Nine Hundred and Eight in Base 21 Unovigesimal

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

1.3905e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000dkf02bjii9j2a21

The reciprocal of 13905 in Base 21 Unovigesimal.

Palindrome?

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

The number 1ab321 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 nine hundred and five is a composite number with 16 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Thirteen thousand nine hundred and five is a composite number with 16 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 nine hundred and five has the following 3 prime factors:

3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
103
4j21
One Hundred and Three in Base 21 Unovigesimal

Prime Factorization

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

3213 · 5211 · 4j211 = 1ab321

Base Conversions

The number thirteen thousand nine hundred and five in 35 different bases