The Number

199805

One Hundred and Ninety-Nine Thousand Eight Hundred and Five

In Base 21 Unovigesimal Is

10c1b21

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

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

Nearby Numbers

Positive, nonzero integers within three units

199802
10c1821
One Hundred and Ninety-Nine Thousand Eight Hundred and Two in Base 21 Unovigesimal
199803
10c1921
One Hundred and Ninety-Nine Thousand Eight Hundred and Three in Base 21 Unovigesimal
199804
10c1a21
One Hundred and Ninety-Nine Thousand Eight Hundred and Four in Base 21 Unovigesimal
199806
10c1c21
One Hundred and Ninety-Nine Thousand Eight Hundred and Six in Base 21 Unovigesimal
199807
10c1d21
One Hundred and Ninety-Nine Thousand Eight Hundred and Seven in Base 21 Unovigesimal
199808
10c1e21
One Hundred and Ninety-Nine Thousand Eight 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.

1.99805e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000k954i2e1739k21

The reciprocal of 199805 in Base 21 Unovigesimal.

Palindrome?

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

The number 10c1b21 is not a palindrome.

Not A Prime Number

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

One hundred and ninety-nine thousand eight hundred and five 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.

One hundred and ninety-nine thousand eight hundred and five 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 one hundred and ninety-nine thousand eight hundred and five has the following 3 prime factors:

5
521
Five in Base 21 Unovigesimal
89
4521
Eighty-Nine in Base 21 Unovigesimal
449
10821
Four Hundred and Forty-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

5211 · 45211 · 108211 = 10c1b21

Base Conversions

The number one hundred and ninety-nine thousand eight hundred and five in 35 different bases