The Number

128009

One Hundred and Twenty-Eight Thousand and Nine

In Base 8 Octal Is

3720118

The numbers with a 8 subscript use Base 8 Octal 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
3720068
One Hundred and Twenty-Eight Thousand and Six in Base 8 Octal
128007
3720078
One Hundred and Twenty-Eight Thousand and Seven in Base 8 Octal
128008
3720108
One Hundred and Twenty-Eight Thousand and Eight in Base 8 Octal
128010
3720128
One Hundred and Twenty-Eight Thousand and Ten in Base 8 Octal
128011
3720138
One Hundred and Twenty-Eight Thousand and Eleven in Base 8 Octal
128012
3720148
One Hundred and Twenty-Eight Thousand and Twelve in Base 8 Octal

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.

0.000002030401124746323678

The reciprocal of 128009 in Base 8 Octal.

Palindrome?

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

The number 3720118 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 8 Octal

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
78
Seven in Base 8 Octal
18287
435578
Eightteen Thousand Two Hundred and Eighty-Seven in Base 8 Octal

Prime Factorization

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

781 · 4355781 = 3720118

Base Conversions

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