The Number

209890

Two Hundred and Nine Thousand Eight Hundred and Ninety

In Base 21 Unovigesimal Is

11djg21

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

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

Nearby Numbers

Positive, nonzero integers within three units

209887
11djd21
Two Hundred and Nine Thousand Eight Hundred and Eighty-Seven in Base 21 Unovigesimal
209888
11dje21
Two Hundred and Nine Thousand Eight Hundred and Eighty-Eight in Base 21 Unovigesimal
209889
11djf21
Two Hundred and Nine Thousand Eight Hundred and Eighty-Nine in Base 21 Unovigesimal
209891
11djh21
Two Hundred and Nine Thousand Eight Hundred and Ninety-One in Base 21 Unovigesimal
209892
11dji21
Two Hundred and Nine Thousand Eight Hundred and Ninety-Two in Base 21 Unovigesimal
209893
11djj21
Two Hundred and Nine Thousand Eight Hundred 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.

2.09890e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000j9d253cg2ca321

The reciprocal of 209890 in Base 21 Unovigesimal.

Palindrome?

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

The number 11djg21 is not a palindrome.

Not A Prime Number

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

Two hundred and nine thousand eight hundred and ninety 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.

Two hundred and nine thousand eight hundred and ninety 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 two hundred and nine thousand eight hundred and ninety has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
139
6d21
One Hundred and Thirty-Nine in Base 21 Unovigesimal
151
7421
One Hundred and Fifty-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

2211 · 5211 · 6d211 · 74211 = 11djg21

Base Conversions

The number two hundred and nine thousand eight hundred and ninety in 35 different bases