Nearby Numbers

Positive, nonzero integers within three units

28028

30be21

Twenty-Eight Thousand and Twenty-Eight 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

28032

30bi21

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

28033

30bj21

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

28034

30bk21

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

Scientific Notation

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

2.8031e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0006jee9ag4ca5421

The reciprocal of 28031 in Base 21 Unovigesimal.

Palindrome?

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

The number 30bh21 is not a palindrome.

A Prime Number

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

Twenty-eight thousand and thirty-one is the 3059th prime number.   See primes in Base 21 Unovigesimal

Not A Composite

Composites have more than just these two factors.

Twenty-Eight Thousand and Thirty-One is not a composite number because it has exactly two factors: One and Twenty-Eight Thousand and Thirty-One

Prime Factors

28031

30bh21

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

Prime Factorization

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

30bh211 = 30bh21

Base Conversions

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