The Number

21998

Twenty-One Thousand Nine Hundred and Ninety-Eight

In Base 28 Octovigesimal Is

101i28

The numbers with a 28 subscript use Base 28 Octovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21995
101f28
Twenty-One Thousand Nine Hundred and Ninety-Five in Base 28 Octovigesimal
21996
101g28
Twenty-One Thousand Nine Hundred and Ninety-Six in Base 28 Octovigesimal
21997
101h28
Twenty-One Thousand Nine Hundred and Ninety-Seven in Base 28 Octovigesimal
21999
101j28
Twenty-One Thousand Nine Hundred and Ninety-Nine in Base 28 Octovigesimal
22000
101k28
Twenty-Two Thousand in Base 28 Octovigesimal
22001
101l28
Twenty-Two Thousand and One in Base 28 Octovigesimal

Scientific Notation

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

2.1998e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000rqa2jbg2rf428

The reciprocal of 21998 in Base 28 Octovigesimal.

Palindrome?

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

The number 101i28 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand nine hundred and ninety-eight is a composite number with 8 total factors (including 1 and itself).   See primes in Base 28 Octovigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and ninety-eight 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 twenty-one thousand nine hundred and ninety-eight has the following 3 prime factors:

2
228
Two in Base 28 Octovigesimal
17
h28
Seventeen in Base 28 Octovigesimal
647
n328
Six Hundred and Forty-Seven in Base 28 Octovigesimal

Prime Factorization

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

2281 · h281 · n3281 = 101i28

Base Conversions

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