The Number

1669

One Thousand Six Hundred and Sixty-Nine

In Base 11 Undecimal Is

128811

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

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

Nearby Numbers

Positive, nonzero integers within three units

1666
128511
One Thousand Six Hundred and Sixty-Six in Base 11 Undecimal
1667
128611
One Thousand Six Hundred and Sixty-Seven in Base 11 Undecimal
1668
128711
One Thousand Six Hundred and Sixty-Eight in Base 11 Undecimal
1670
128911
One Thousand Six Hundred and Seventy in Base 11 Undecimal
1671
128a11
One Thousand Six Hundred and Seventy-One in Base 11 Undecimal
1672
129011
One Thousand Six Hundred and Seventy-Two in Base 11 Undecimal

Scientific Notation

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

1.669e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0008854a578691213911

The reciprocal of 1669 in Base 11 Undecimal.

Palindrome?

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

The number 128811 is not a palindrome.

A Prime Number

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

One thousand six hundred and sixty-nine is the 263rd prime number.   See primes in Base 11 Undecimal

Not A Composite

Composites have more than just these two factors.

One Thousand Six Hundred and Sixty-Nine is not a composite number because it has exactly two factors: One and One Thousand Six Hundred and Sixty-Nine

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number one thousand six hundred and sixty-nine has the following 1 prime factor:

1669
128811
One Thousand Six Hundred and Sixty-Nine in Base 11 Undecimal

Prime Factorization

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

1288111 = 128811

Base Conversions

The number one thousand six hundred and sixty-nine in 35 different bases