The Number

28007

Twenty-Eight Thousand and Seven

In Base 21 Unovigesimal Is

30ae21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

28004
30ab21
Twenty-Eight Thousand and Four in Base 21 Unovigesimal
28005
30ac21
Twenty-Eight Thousand and Five in Base 21 Unovigesimal
28006
30ad21
Twenty-Eight Thousand and Six in Base 21 Unovigesimal
28008
30af21
Twenty-Eight Thousand and Eight in Base 21 Unovigesimal
28009
30ag21
Twenty-Eight Thousand and Nine in Base 21 Unovigesimal
28010
30ah21
Twenty-Eight Thousand and Ten in Base 21 Unovigesimal

Scientific Notation

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

2.8007e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0006jh6agadd9h9721

The reciprocal of 28007 in Base 21 Unovigesimal.

Palindrome?

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

The number 30ae21 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 seven is a composite number with 4 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 seven is a composite number with 4 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 and seven has the following 2 prime factors:

7
721
Seven in Base 21 Unovigesimal
4001
91b21
Four Thousand and 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

7211 · 91b211 = 30ae21

Base Conversions

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