The Number

28

Twenty-Eight

In Base 5 Quinary Is

1035

The numbers with a 5 subscript use Base 5 Quinary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

25
1005
Twenty-Five in Base 5 Quinary
26
1015
Twenty-Six in Base 5 Quinary
27
1025
Twenty-Seven in Base 5 Quinary
29
1045
Twenty-Nine in Base 5 Quinary
30
1105
Thirty in Base 5 Quinary
31
1115
Thirty-One in Base 5 Quinary

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.

0.00421300421300421300421235

The reciprocal of 28 in Base 5 Quinary.

Palindrome?

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

The number 1035 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 5 Quinary

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
25
Two in Base 5 Quinary
7
125
Seven in Base 5 Quinary

Prime Factorization

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

252 · 1251 = 1035

Base Conversions

The number twenty-eight in 35 different bases