The Number

221661

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

In Base 21 Unovigesimal Is

12jd621

The numbers with a 21 subscript use Base 21 Unovigesimal 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
12jd321
Two Hundred and Twenty-One Thousand Six Hundred and Fifty-Eight in Base 21 Unovigesimal
221659
12jd421
Two Hundred and Twenty-One Thousand Six Hundred and Fifty-Nine in Base 21 Unovigesimal
221660
12jd521
Two Hundred and Twenty-One Thousand Six Hundred and Sixty in Base 21 Unovigesimal
221662
12jd721
Two Hundred and Twenty-One Thousand Six Hundred and Sixty-Two in Base 21 Unovigesimal
221663
12jd821
Two Hundred and Twenty-One Thousand Six Hundred and Sixty-Three in Base 21 Unovigesimal
221664
12jd921
Two Hundred and Twenty-One Thousand Six Hundred and Sixty-Four in Base 21 Unovigesimal

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.

0.0000i8j8gi0e1bc821

The reciprocal of 221661 in Base 21 Unovigesimal.

Palindrome?

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

The number 12jd621 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 21 Unovigesimal

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
321
Three in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
2239
51d21
Two Thousand Two Hundred and Thirty-Nine in Base 21 Unovigesimal

Prime Factorization

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

3212 · b211 · 51d211 = 12jd621

Base Conversions

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