The Number

221857

Two Hundred and Twenty-One Thousand Eight Hundred and Fifty-Seven

In Base 21 Unovigesimal Is

12k1d21

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 Fifty-Seven in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

221854
12k1a21
Two Hundred and Twenty-One Thousand Eight Hundred and Fifty-Four in Base 21 Unovigesimal
221855
12k1b21
Two Hundred and Twenty-One Thousand Eight Hundred and Fifty-Five in Base 21 Unovigesimal
221856
12k1c21
Two Hundred and Twenty-One Thousand Eight Hundred and Fifty-Six in Base 21 Unovigesimal
221858
12k1e21
Two Hundred and Twenty-One Thousand Eight Hundred and Fifty-Eight in Base 21 Unovigesimal
221859
12k1f21
Two Hundred and Twenty-One Thousand Eight Hundred and Fifty-Nine in Base 21 Unovigesimal
221860
12k1g21
Two Hundred and Twenty-One Thousand Eight Hundred and Sixty in Base 21 Unovigesimal

Scientific Notation

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

2.21857e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000i8c513ei457e21

The reciprocal of 221857 in Base 21 Unovigesimal.

Palindrome?

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

The number 12k1d21 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 fifty-seven is a composite number with 4 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 fifty-seven is a composite number with 4 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 fifty-seven has the following 2 prime factors:

61
2j21
Sixty-One in Base 21 Unovigesimal
3637
85421
Three Thousand Six Hundred and Thirty-Seven in Base 21 Unovigesimal

Prime Factorization

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

2j211 · 854211 = 12k1d21

Base Conversions

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