The Number

221815

Two Hundred and Twenty-One Thousand Eight Hundred and Fifteen

In Base 28 Octovigesimal Is

a2pr28

The numbers with a 28 subscript use Base 28 Octovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

221812
a2po28
Two Hundred and Twenty-One Thousand Eight Hundred and Twelve in Base 28 Octovigesimal
221813
a2pp28
Two Hundred and Twenty-One Thousand Eight Hundred and Thirteen in Base 28 Octovigesimal
221814
a2pq28
Two Hundred and Twenty-One Thousand Eight Hundred and Fourteen in Base 28 Octovigesimal
221816
a2q028
Two Hundred and Twenty-One Thousand Eight Hundred and Sixteen in Base 28 Octovigesimal
221817
a2q128
Two Hundred and Twenty-One Thousand Eight Hundred and Seventeen in Base 28 Octovigesimal
221818
a2q228
Two Hundred and Twenty-One Thousand Eight Hundred and Eightteen in Base 28 Octovigesimal

Scientific Notation

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

2.21815e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0002lgdi4end50k28

The reciprocal of 221815 in Base 28 Octovigesimal.

Palindrome?

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

The number a2pr28 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 fifteen is a composite number with 16 total factors (including 1 and itself).   See primes in Base 28 Octovigesimal

A Composite

Composites have more than just these two factors.

Two hundred and twenty-one thousand eight hundred and fifteen is a composite number with 16 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 fifteen has the following 4 prime factors:

5
528
Five in Base 28 Octovigesimal
11
b28
Eleven in Base 28 Octovigesimal
37
1928
Thirty-Seven in Base 28 Octovigesimal
109
3p28
One Hundred and Nine in Base 28 Octovigesimal

Prime Factorization

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

5281 · b281 · 19281 · 3p281 = a2pr28

Base Conversions

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