The Number

21998

Twenty-One Thousand Nine Hundred and Ninety-Eight

In Base 12 Duodecimal Is

1089212

The numbers with a 12 subscript use Base 12 Duodecimal 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
1088b12
Twenty-One Thousand Nine Hundred and Ninety-Five in Base 12 Duodecimal
21996
1089012
Twenty-One Thousand Nine Hundred and Ninety-Six in Base 12 Duodecimal
21997
1089112
Twenty-One Thousand Nine Hundred and Ninety-Seven in Base 12 Duodecimal
21999
1089312
Twenty-One Thousand Nine Hundred and Ninety-Nine in Base 12 Duodecimal
22000
1089412
Twenty-Two Thousand in Base 12 Duodecimal
22001
1089512
Twenty-Two Thousand and One in Base 12 Duodecimal

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.

0.0000b38a4963a13a88512

The reciprocal of 21998 in Base 12 Duodecimal.

Palindrome?

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

The number 1089212 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 12 Duodecimal

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
212
Two in Base 12 Duodecimal
17
1512
Seventeen in Base 12 Duodecimal
647
45b12
Six Hundred and Forty-Seven in Base 12 Duodecimal

Prime Factorization

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

2121 · 15121 · 45b121 = 1089212

Base Conversions

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