The Number

28

Twenty-Eight

In Base 4 Quaternary Is

1304

The numbers with a 4 subscript use Base 4 Quaternary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

25
1214
Twenty-Five in Base 4 Quaternary
26
1224
Twenty-Six in Base 4 Quaternary
27
1234
Twenty-Seven in Base 4 Quaternary
29
1314
Twenty-Nine in Base 4 Quaternary
30
1324
Thirty in Base 4 Quaternary
31
1334
Thirty-One in Base 4 Quaternary

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.

0.00210210210210210210210210214

The reciprocal of 28 in Base 4 Quaternary.

Palindrome?

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

The number 1304 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 4 Quaternary

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
24
Two in Base 4 Quaternary
7
134
Seven in Base 4 Quaternary

Prime Factorization

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

242 · 1341 = 1304

Base Conversions

The number twenty-eight in 35 different bases