The Number

208990

Two Hundred and Eight Thousand Nine Hundred and Ninety

In Base 21 Unovigesimal Is

11bij21

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

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

Nearby Numbers

Positive, nonzero integers within three units

208987
11big21
Two Hundred and Eight Thousand Nine Hundred and Eighty-Seven in Base 21 Unovigesimal
208988
11bih21
Two Hundred and Eight Thousand Nine Hundred and Eighty-Eight in Base 21 Unovigesimal
208989
11bii21
Two Hundred and Eight Thousand Nine Hundred and Eighty-Nine in Base 21 Unovigesimal
208991
11bik21
Two Hundred and Eight Thousand Nine Hundred and Ninety-One in Base 21 Unovigesimal
208992
11bj021
Two Hundred and Eight Thousand Nine Hundred and Ninety-Two in Base 21 Unovigesimal
208993
11bj121
Two Hundred and Eight Thousand Nine 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.

2.08990e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000jb815hehik6d21

The reciprocal of 208990 in Base 21 Unovigesimal.

Palindrome?

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

The number 11bij21 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 eight thousand nine hundred and ninety is a composite number with 8 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 eight thousand nine hundred and ninety is a composite number with 8 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 eight thousand nine hundred and ninety has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
20899
258421
Twenty Thousand Eight Hundred and Ninety-Nine 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 · 2584211 = 11bij21

Base Conversions

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