The Number

221908

Two Hundred and Twenty-One Thousand Nine Hundred and Eight

In Base 21 Unovigesimal Is

12k4121

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

221905
12k3j21
Two Hundred and Twenty-One Thousand Nine Hundred and Five in Base 21 Unovigesimal
221906
12k3k21
Two Hundred and Twenty-One Thousand Nine Hundred and Six in Base 21 Unovigesimal
221907
12k4021
Two Hundred and Twenty-One Thousand Nine Hundred and Seven in Base 21 Unovigesimal
221909
12k4221
Two Hundred and Twenty-One Thousand Nine Hundred and Nine in Base 21 Unovigesimal
221910
12k4321
Two Hundred and Twenty-One Thousand Nine Hundred and Ten in Base 21 Unovigesimal
221911
12k4421
Two Hundred and Twenty-One Thousand Nine Hundred and Eleven in Base 21 Unovigesimal

Scientific Notation

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

2.21908e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000i8a7i7g3i2jf21

The reciprocal of 221908 in Base 21 Unovigesimal.

Palindrome?

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

The number 12k4121 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 nine hundred and eight 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 nine hundred and eight 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 nine hundred and eight has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
29
1821
Twenty-Nine in Base 21 Unovigesimal
1913
47221
One Thousand Nine Hundred and Thirteen in Base 21 Unovigesimal

Prime Factorization

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

2212 · 18211 · 472211 = 12k4121

Base Conversions

The number two hundred and twenty-one thousand nine hundred and eight in 35 different bases