The Number

128009

One Hundred and Twenty-Eight Thousand and Nine

In Base 11 Undecimal Is

881a211

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

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

Nearby Numbers

Positive, nonzero integers within three units

128006
8819a11
One Hundred and Twenty-Eight Thousand and Six in Base 11 Undecimal
128007
881a011
One Hundred and Twenty-Eight Thousand and Seven in Base 11 Undecimal
128008
881a111
One Hundred and Twenty-Eight Thousand and Eight in Base 11 Undecimal
128010
881a311
One Hundred and Twenty-Eight Thousand and Ten in Base 11 Undecimal
128011
881a411
One Hundred and Twenty-Eight Thousand and Eleven in Base 11 Undecimal
128012
881a511
One Hundred and 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.

1.28009e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000012926197907a34511

The reciprocal of 128009 in Base 11 Undecimal.

Palindrome?

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

The number 881a211 is not a palindrome.

Not A Prime Number

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

One hundred and 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.

One hundred and 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 one hundred and twenty-eight thousand and nine has the following 2 prime factors:

7
711
Seven in Base 11 Undecimal
18287
1281511
Eightteen Thousand Two Hundred and Eighty-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

7111 · 12815111 = 881a211

Base Conversions

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