The Number

21984

Twenty-One Thousand Nine Hundred and Eighty-Four

In Base 15 Quindecimal Is

67a915

The numbers with a 15 subscript use Base 15 Quindecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21981
67a615
Twenty-One Thousand Nine Hundred and Eighty-One in Base 15 Quindecimal
21982
67a715
Twenty-One Thousand Nine Hundred and Eighty-Two in Base 15 Quindecimal
21983
67a815
Twenty-One Thousand Nine Hundred and Eighty-Three in Base 15 Quindecimal
21985
67aa15
Twenty-One Thousand Nine Hundred and Eighty-Five in Base 15 Quindecimal
21986
67ab15
Twenty-One Thousand Nine Hundred and Eighty-Six in Base 15 Quindecimal
21987
67ac15
Twenty-One Thousand Nine Hundred and Eighty-Seven in Base 15 Quindecimal

Scientific Notation

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

2.1984e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0002481ec314ec5cc15

The reciprocal of 21984 in Base 15 Quindecimal.

Palindrome?

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

The number 67a915 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 eighty-four is a composite number with 24 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and eighty-four is a composite number with 24 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 eighty-four has the following 3 prime factors:

2
215
Two in Base 15 Quindecimal
3
315
Three in Base 15 Quindecimal
229
10415
Two Hundred and Twenty-Nine in Base 15 Quindecimal

Prime Factorization

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

2155 · 3151 · 104151 = 67a915

Base Conversions

The number twenty-one thousand nine hundred and eighty-four in 35 different bases