The Number

21666

Twenty-One Thousand Six Hundred and Sixty-Six

In Base 6 Senary Is

2441506

The numbers with a 6 subscript use Base 6 Senary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21663
2441436
Twenty-One Thousand Six Hundred and Sixty-Three in Base 6 Senary
21664
2441446
Twenty-One Thousand Six Hundred and Sixty-Four in Base 6 Senary
21665
2441456
Twenty-One Thousand Six Hundred and Sixty-Five in Base 6 Senary
21667
2441516
Twenty-One Thousand Six Hundred and Sixty-Seven in Base 6 Senary
21668
2441526
Twenty-One Thousand Six Hundred and Sixty-Eight in Base 6 Senary
21669
2441536
Twenty-One Thousand Six Hundred and Sixty-Nine in Base 6 Senary

Scientific Notation

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

2.1666e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000002053045545103021033346

The reciprocal of 21666 in Base 6 Senary.

Palindrome?

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

The number 2441506 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand six hundred and sixty-six is a composite number with 16 total factors (including 1 and itself).   See primes in Base 6 Senary

A Composite

Composites have more than just these two factors.

Twenty-one thousand six hundred and sixty-six is a composite number with 16 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 twenty-one thousand six hundred and sixty-six has the following 4 prime factors:

2
26
Two in Base 6 Senary
3
36
Three in Base 6 Senary
23
356
Twenty-Three in Base 6 Senary
157
4216
One Hundred and Fifty-Seven in Base 6 Senary

Prime Factorization

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

261 · 361 · 3561 · 42161 = 2441506

Base Conversions

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