The Number

18505

Eightteen Thousand Five Hundred and Five

In Base 21 Unovigesimal Is

1kk421

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

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

Nearby Numbers

Positive, nonzero integers within three units

18502
1kk121
Eightteen Thousand Five Hundred and Two in Base 21 Unovigesimal
18503
1kk221
Eightteen Thousand Five Hundred and Three in Base 21 Unovigesimal
18504
1kk321
Eightteen Thousand Five Hundred and Four in Base 21 Unovigesimal
18506
1kk521
Eightteen Thousand Five Hundred and Six in Base 21 Unovigesimal
18507
1kk621
Eightteen Thousand Five Hundred and Seven in Base 21 Unovigesimal
18508
1kk721
Eightteen Thousand Five 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.

1.8505e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000aaefh9j1af2721

The reciprocal of 18505 in Base 21 Unovigesimal.

Palindrome?

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

The number 1kk421 is not a palindrome.

Not A Prime Number

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

Eightteen thousand five hundred and five 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.

Eightteen thousand five hundred and five 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 eightteen thousand five hundred and five has the following 2 prime factors:

5
521
Five in Base 21 Unovigesimal
3701
88521
Three Thousand Seven Hundred and 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

5211 · 885211 = 1kk421

Base Conversions

The number eightteen thousand five hundred and five in 35 different bases