The Number

11809

Eleven Thousand Eight Hundred and Nine

In Base 21 Unovigesimal Is

15g721

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

For more familiar numbers: See Eleven Thousand Eight Hundred and Nine in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

11806
15g421
Eleven Thousand Eight Hundred and Six in Base 21 Unovigesimal
11807
15g521
Eleven Thousand Eight Hundred and Seven in Base 21 Unovigesimal
11808
15g621
Eleven Thousand Eight Hundred and Eight in Base 21 Unovigesimal
11810
15g821
Eleven Thousand Eight Hundred and Ten in Base 21 Unovigesimal
11811
15g921
Eleven Thousand Eight Hundred and Eleven in Base 21 Unovigesimal
11812
15ga21
Eleven Thousand Eight Hundred and Twelve in Base 21 Unovigesimal

Scientific Notation

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

1.1809e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000g9hg63j74i9k21

The reciprocal of 11809 in Base 21 Unovigesimal.

Palindrome?

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

The number 15g721 is not a palindrome.

Not A Prime Number

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

Eleven thousand eight hundred and nine is a composite number with 6 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Eleven thousand eight hundred and nine is a composite number with 6 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 eleven thousand eight hundred and nine has the following 2 prime factors:

7
721
Seven in Base 21 Unovigesimal
241
ba21
Two Hundred and Forty-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

7212 · ba211 = 15g721

Base Conversions

The number eleven thousand eight hundred and nine in 35 different bases