The Number

2009

Two Thousand and Nine

In Base 11 Undecimal Is

156711

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

For more familiar numbers: See Two Thousand and Nine in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

2006
156411
Two Thousand and Six in Base 11 Undecimal
2007
156511
Two Thousand and Seven in Base 11 Undecimal
2008
156611
Two Thousand and Eight in Base 11 Undecimal
2010
156811
Two Thousand and Ten in Base 11 Undecimal
2011
156911
Two Thousand and Eleven in Base 11 Undecimal
2012
156a11
Two 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.

2.009e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0007318a325982312a411

The reciprocal of 2009 in Base 11 Undecimal.

Palindrome?

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

The number 156711 is not a palindrome.

Not A Prime Number

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

Two thousand and nine is a composite number with 6 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Two thousand and nine is a composite number with 6 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 two thousand and nine has the following 2 prime factors:

7
711
Seven in Base 11 Undecimal
41
3811
Forty-One in Base 11 Undecimal

Prime Factorization

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

7112 · 38111 = 156711

Base Conversions

The number two thousand and nine in 35 different bases