The Number

221915

Two Hundred and Twenty-One Thousand Nine Hundred and Fifteen

In Base 18 Octodecimal Is

220gb18

The numbers with a 18 subscript use Base 18 Octodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

221912
220g818
Two Hundred and Twenty-One Thousand Nine Hundred and Twelve in Base 18 Octodecimal
221913
220g918
Two Hundred and Twenty-One Thousand Nine Hundred and Thirteen in Base 18 Octodecimal
221914
220ga18
Two Hundred and Twenty-One Thousand Nine Hundred and Fourteen in Base 18 Octodecimal
221916
220gc18
Two Hundred and Twenty-One Thousand Nine Hundred and Sixteen in Base 18 Octodecimal
221917
220gd18
Two Hundred and Twenty-One Thousand Nine Hundred and Seventeen in Base 18 Octodecimal
221918
220ge18
Two Hundred and Twenty-One Thousand Nine Hundred and Eightteen in Base 18 Octodecimal

Scientific Notation

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

2.21915e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000894e8a0d378h218

The reciprocal of 221915 in Base 18 Octodecimal.

Palindrome?

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

The number 220gb18 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 fifteen is a composite number with 4 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Two hundred and twenty-one thousand nine hundred and fifteen 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 nine hundred and fifteen has the following 2 prime factors:

5
518
Five in Base 18 Octodecimal
44383
7ahd18
Forty-Four Thousand Three Hundred and Eighty-Three in Base 18 Octodecimal

Prime Factorization

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

5181 · 7ahd181 = 220gb18

Base Conversions

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