Nearby Numbers

Positive, nonzero integers within three units

28025

30bb21

Twenty-Eight Thousand and Twenty-Five in Base 21 Unovigesimal

28026

30bc21

Twenty-Eight Thousand and Twenty-Six in Base 21 Unovigesimal

28027

30bd21

Twenty-Eight Thousand and Twenty-Seven in Base 21 Unovigesimal

28029

30bf21

Twenty-Eight Thousand and Twenty-Nine in Base 21 Unovigesimal

28030

30bg21

Twenty-Eight Thousand and Thirty in Base 21 Unovigesimal

28031

30bh21

Twenty-Eight Thousand and Thirty-One in Base 21 Unovigesimal

Scientific Notation

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

2.8028e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0006jf06jf06jf121

The reciprocal of 28028 in Base 21 Unovigesimal.

Palindrome?

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

The number 30be21 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 thousand and twenty-eight is a composite number with 36 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty-eight thousand and twenty-eight is a composite number with 36 total factors (including 1 and itself).

Prime Factors

2

221

Two in Base 21 Unovigesimal

7

721

Seven in Base 21 Unovigesimal

11

b21

Eleven in Base 21 Unovigesimal

13

d21

Thirteen in Base 21 Unovigesimal

Prime Factorization

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

2212 · 7212 · b211 · d211 = 30be21

Base Conversions

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