The Number

28

Twenty-Eight

In Base 16 Hexadecimal Is

1c16

The numbers with a 16 subscript use Base 16 Hexadecimal notation.

For more familiar numbers: See Twenty-Eight in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

25
1916
Twenty-Five in Base 16 Hexadecimal
26
1a16
Twenty-Six in Base 16 Hexadecimal
27
1b16
Twenty-Seven in Base 16 Hexadecimal
29
1d16
Twenty-Nine in Base 16 Hexadecimal
30
1e16
Thirty in Base 16 Hexadecimal
31
1f16
Thirty-One in Base 16 Hexadecimal

Scientific Notation

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

2.8e1

Reciprocal

A number multiplied with its reciprocal is one.

0.0924924924924916

The reciprocal of 28 in Base 16 Hexadecimal.

Palindrome?

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

The number 1c16 is not a palindrome.

Not A Prime Number

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

Twenty-eight is a composite number with 6 total factors (including 1 and itself).   See primes in Base 16 Hexadecimal

A Composite

Composites have more than just these two factors.

Twenty-eight is a composite number with 6 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-eight has the following 2 prime factors:

2
216
Two in Base 16 Hexadecimal
7
716
Seven in Base 16 Hexadecimal

Prime Factorization

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

2162 · 7161 = 1c16

Base Conversions

The number twenty-eight in 35 different bases