The Number

221845

Two Hundred and Twenty-One Thousand Eight Hundred and Forty-Five

In Base 21 Unovigesimal Is

12k1121

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

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

Nearby Numbers

Positive, nonzero integers within three units

221842
12k0j21
Two Hundred and Twenty-One Thousand Eight Hundred and Forty-Two in Base 21 Unovigesimal
221843
12k0k21
Two Hundred and Twenty-One Thousand Eight Hundred and Forty-Three in Base 21 Unovigesimal
221844
12k1021
Two Hundred and Twenty-One Thousand Eight Hundred and Forty-Four in Base 21 Unovigesimal
221846
12k1221
Two Hundred and Twenty-One Thousand Eight Hundred and Forty-Six in Base 21 Unovigesimal
221847
12k1321
Two Hundred and Twenty-One Thousand Eight Hundred and Forty-Seven in Base 21 Unovigesimal
221848
12k1421
Two Hundred and Twenty-One Thousand Eight Hundred and Forty-Eight in Base 21 Unovigesimal

Scientific Notation

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

2.21845e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000i8ce5ha8490f21

The reciprocal of 221845 in Base 21 Unovigesimal.

Palindrome?

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

The number 12k1121 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 eight hundred and forty-five is a composite number with 8 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 eight hundred and forty-five 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 eight hundred and forty-five has the following 3 prime factors:

5
521
Five in Base 21 Unovigesimal
13
d21
Thirteen in Base 21 Unovigesimal
3413
7fb21
Three Thousand Four 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

5211 · d211 · 7fb211 = 12k1121

Base Conversions

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