The Number

6665

Six Thousand Six Hundred and Sixty-Five

In Base 11 Undecimal Is

500a11

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

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

Nearby Numbers

Positive, nonzero integers within three units

6662
500711
Six Thousand Six Hundred and Sixty-Two in Base 11 Undecimal
6663
500811
Six Thousand Six Hundred and Sixty-Three in Base 11 Undecimal
6664
500911
Six Thousand Six Hundred and Sixty-Four in Base 11 Undecimal
6666
501011
Six Thousand Six Hundred and Sixty-Six in Base 11 Undecimal
6667
501111
Six Thousand Six Hundred and Sixty-Seven in Base 11 Undecimal
6668
501211
Six Thousand Six Hundred and Sixty-Eight in Base 11 Undecimal

Scientific Notation

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

6.665e3

Reciprocal

A number multiplied with its reciprocal is one.

0.000221889665003216911

The reciprocal of 6665 in Base 11 Undecimal.

Palindrome?

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

The number 500a11 is not a palindrome.

Not A Prime Number

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

Six thousand six hundred and sixty-five is a composite number with 8 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Six thousand six hundred and sixty-five is a composite number with 8 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 six thousand six hundred and sixty-five has the following 3 prime factors:

5
511
Five in Base 11 Undecimal
31
2911
Thirty-One in Base 11 Undecimal
43
3a11
Forty-Three in Base 11 Undecimal

Prime Factorization

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

5111 · 29111 · 3a111 = 500a11

Base Conversions

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