The Number

18090

Eightteen Thousand and Ninety

In Base 21 Unovigesimal Is

1k0921

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

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

Nearby Numbers

Positive, nonzero integers within three units

18087
1k0621
Eightteen Thousand and Eighty-Seven in Base 21 Unovigesimal
18088
1k0721
Eightteen Thousand and Eighty-Eight in Base 21 Unovigesimal
18089
1k0821
Eightteen Thousand and Eighty-Nine in Base 21 Unovigesimal
18091
1k0a21
Eightteen Thousand and Ninety-One in Base 21 Unovigesimal
18092
1k0b21
Eightteen Thousand and Ninety-Two in Base 21 Unovigesimal
18093
1k0c21
Eightteen Thousand and Ninety-Three in Base 21 Unovigesimal

Scientific Notation

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

1.8090e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000afg1dic6e43b21

The reciprocal of 18090 in Base 21 Unovigesimal.

Palindrome?

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

The number 1k0921 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 and ninety is a composite number with 32 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Eightteen thousand and ninety is a composite number with 32 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 and ninety has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
67
3421
Sixty-Seven in Base 21 Unovigesimal

Prime Factorization

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

2211 · 3213 · 5211 · 34211 = 1k0921

Base Conversions

The number eightteen thousand and ninety in 35 different bases