Nearby Numbers

Positive, nonzero integers within three units

21028

qn028

Twenty-One Thousand and Twenty-Eight in Base 28 Octovigesimal

21029

qn128

Twenty-One Thousand and Twenty-Nine in Base 28 Octovigesimal

21030

qn228

Twenty-One Thousand and Thirty in Base 28 Octovigesimal

21032

qn428

Twenty-One Thousand and Thirty-Two in Base 28 Octovigesimal

21033

qn528

Twenty-One Thousand and Thirty-Three in Base 28 Octovigesimal

21034

qn628

Twenty-One Thousand and Thirty-Four in Base 28 Octovigesimal

Scientific Notation

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

2.1031e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00116998rgfffj28

The reciprocal of 21031 in Base 28 Octovigesimal.

Palindrome?

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

The number qn328 is not a palindrome.

A Prime Number

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

Twenty-one thousand and thirty-one is the 2367th prime number.   See primes in Base 28 Octovigesimal

Not A Composite

Composites have more than just these two factors.

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

Prime Factors

21031

qn328

Twenty-One Thousand and Thirty-One in Base 28 Octovigesimal

Prime Factorization

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

qn3281 = qn328

Base Conversions

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