The Number

28009

Twenty-Eight Thousand and Nine

In Base 11 Undecimal Is

1a05311

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

28006
1a05011
Twenty-Eight Thousand and Six in Base 11 Undecimal
28007
1a05111
Twenty-Eight Thousand and Seven in Base 11 Undecimal
28008
1a05211
Twenty-Eight Thousand and Eight in Base 11 Undecimal
28010
1a05411
Twenty-Eight Thousand and Ten in Base 11 Undecimal
28011
1a05511
Twenty-Eight Thousand and Eleven in Base 11 Undecimal
28012
1a05611
Twenty-Eight Thousand and Twelve in Base 11 Undecimal

Scientific Notation

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

2.8009e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000582823a3492601a11

The reciprocal of 28009 in Base 11 Undecimal.

Palindrome?

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

The number 1a05311 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 nine is a composite number with 4 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Twenty-eight thousand and nine 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 nine has the following 2 prime factors:

37
3411
Thirty-Seven in Base 11 Undecimal
757
62911
Seven Hundred and Fifty-Seven in Base 11 Undecimal

Prime Factorization

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

34111 · 629111 = 1a05311

Base Conversions

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