The Number

221661

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

In Base 11 Undecimal Is

1415a011

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

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

Nearby Numbers

Positive, nonzero integers within three units

221658
14159811
Two Hundred and Twenty-One Thousand Six Hundred and Fifty-Eight in Base 11 Undecimal
221659
14159911
Two Hundred and Twenty-One Thousand Six Hundred and Fifty-Nine in Base 11 Undecimal
221660
14159a11
Two Hundred and Twenty-One Thousand Six Hundred and Sixty in Base 11 Undecimal
221662
1415a111
Two Hundred and Twenty-One Thousand Six Hundred and Sixty-Two in Base 11 Undecimal
221663
1415a211
Two Hundred and Twenty-One Thousand Six Hundred and Sixty-Three in Base 11 Undecimal
221664
1415a311
Two Hundred and Twenty-One Thousand Six Hundred and Sixty-Four in Base 11 Undecimal

Scientific Notation

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

2.21661e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000007aa06a25010a56611

The reciprocal of 221661 in Base 11 Undecimal.

Palindrome?

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

The number 1415a011 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-one is a composite number with 12 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Two hundred and twenty-one thousand six hundred and sixty-one is a composite number with 12 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-one has the following 3 prime factors:

3
311
Three in Base 11 Undecimal
11
1011
Eleven in Base 11 Undecimal
2239
175611
Two Thousand Two Hundred and Thirty-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

3112 · 10111 · 1756111 = 1415a011

Base Conversions

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