The Number

221666

Two Hundred and Twenty-One Thousand Six Hundred and Sixty-Six

In Base 13 Tridecimal Is

79b8313

The numbers with a 13 subscript use Base 13 Tridecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

221663
79b8013
Two Hundred and Twenty-One Thousand Six Hundred and Sixty-Three in Base 13 Tridecimal
221664
79b8113
Two Hundred and Twenty-One Thousand Six Hundred and Sixty-Four in Base 13 Tridecimal
221665
79b8213
Two Hundred and Twenty-One Thousand Six Hundred and Sixty-Five in Base 13 Tridecimal
221667
79b8413
Two Hundred and Twenty-One Thousand Six Hundred and Sixty-Seven in Base 13 Tridecimal
221668
79b8513
Two Hundred and Twenty-One Thousand Six Hundred and Sixty-Eight in Base 13 Tridecimal
221669
79b8613
Two Hundred and Twenty-One Thousand Six Hundred and Sixty-Nine in Base 13 Tridecimal

Scientific Notation

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

2.21666e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000018a0ccb5689a16513

The reciprocal of 221666 in Base 13 Tridecimal.

Palindrome?

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

The number 79b8313 is not a palindrome.

Not A Prime Number

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

Two hundred and twenty-one thousand six hundred and sixty-six is a composite number with 8 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

Two hundred and twenty-one thousand six hundred and sixty-six 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 two hundred and twenty-one thousand six hundred and sixty-six has the following 3 prime factors:

2
213
Two in Base 13 Tridecimal
137
a713
One Hundred and Thirty-Seven in Base 13 Tridecimal
809
4a313
Eight Hundred and Nine in Base 13 Tridecimal

Prime Factorization

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

2131 · a7131 · 4a3131 = 79b8313

Base Conversions

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