The Number

21128

Twenty-One Thousand One Hundred and Twenty-Eight

In Base 15 Quindecimal Is

63d815

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

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

Nearby Numbers

Positive, nonzero integers within three units

21125
63d515
Twenty-One Thousand One Hundred and Twenty-Five in Base 15 Quindecimal
21126
63d615
Twenty-One Thousand One Hundred and Twenty-Six in Base 15 Quindecimal
21127
63d715
Twenty-One Thousand One Hundred and Twenty-Seven in Base 15 Quindecimal
21129
63d915
Twenty-One Thousand One Hundred and Twenty-Nine in Base 15 Quindecimal
21130
63da15
Twenty-One Thousand One Hundred and Thirty in Base 15 Quindecimal
21131
63db15
Twenty-One Thousand One Hundred and Thirty-One in Base 15 Quindecimal

Scientific Notation

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

2.1128e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00025e1d08e51dc1715

The reciprocal of 21128 in Base 15 Quindecimal.

Palindrome?

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

The number 63d815 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 one hundred and twenty-eight is a composite number with 16 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 one hundred and twenty-eight is a composite number with 16 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 one hundred and twenty-eight has the following 3 prime factors:

2
215
Two in Base 15 Quindecimal
19
1415
Nineteen in Base 15 Quindecimal
139
9415
One Hundred and Thirty-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

2153 · 14151 · 94151 = 63d815

Base Conversions

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