The Number

28721

Twenty-Eight Thousand Seven Hundred and Twenty-One

In Base 28 Octovigesimal Is

18hl28

The numbers with a 28 subscript use Base 28 Octovigesimal notation.

For more familiar numbers: See Twenty-Eight Thousand Seven Hundred and Twenty-One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

28718
18hi28
Twenty-Eight Thousand Seven Hundred and Eightteen in Base 28 Octovigesimal
28719
18hj28
Twenty-Eight Thousand Seven Hundred and Nineteen in Base 28 Octovigesimal
28720
18hk28
Twenty-Eight Thousand Seven Hundred and Twenty in Base 28 Octovigesimal
28722
18hm28
Twenty-Eight Thousand Seven Hundred and Twenty-Two in Base 28 Octovigesimal
28723
18hn28
Twenty-Eight Thousand Seven Hundred and Twenty-Three in Base 28 Octovigesimal
28724
18ho28
Twenty-Eight Thousand Seven Hundred and Twenty-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.

2.8721e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000lb693ih227m28

The reciprocal of 28721 in Base 28 Octovigesimal.

Palindrome?

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

The number 18hl28 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 seven hundred and twenty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 28 Octovigesimal

A Composite

Composites have more than just these two factors.

Twenty-eight thousand seven hundred and twenty-one is a composite number with 8 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 thousand seven hundred and twenty-one has the following 3 prime factors:

7
728
Seven in Base 28 Octovigesimal
11
b28
Eleven in Base 28 Octovigesimal
373
d928
Three Hundred and Seventy-Three in Base 28 Octovigesimal

Prime Factorization

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

7281 · b281 · d9281 = 18hl28

Base Conversions

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