The Number

421820

Four Hundred and Twenty-One Thousand Eight Hundred and Twenty

In Base 18 Octodecimal Is

405g818

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

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

Nearby Numbers

Positive, nonzero integers within three units

421817
405g518
Four Hundred and Twenty-One Thousand Eight Hundred and Seventeen in Base 18 Octodecimal
421818
405g618
Four Hundred and Twenty-One Thousand Eight Hundred and Eightteen in Base 18 Octodecimal
421819
405g718
Four Hundred and Twenty-One Thousand Eight Hundred and Nineteen in Base 18 Octodecimal
421821
405g918
Four Hundred and Twenty-One Thousand Eight Hundred and Twenty-One in Base 18 Octodecimal
421822
405ga18
Four Hundred and Twenty-One Thousand Eight Hundred and Twenty-Two in Base 18 Octodecimal
421823
405gb18
Four Hundred and Twenty-One Thousand Eight Hundred and Twenty-Three in Base 18 Octodecimal

Scientific Notation

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

4.21820e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000048b6e543cd16618

The reciprocal of 421820 in Base 18 Octodecimal.

Palindrome?

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

The number 405g818 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Four hundred and twenty-one thousand eight hundred and twenty is a composite number with 48 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Four hundred and twenty-one thousand eight hundred and twenty is a composite number with 48 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 four hundred and twenty-one thousand eight hundred and twenty has the following 5 prime factors:

2
218
Two in Base 18 Octodecimal
5
518
Five in Base 18 Octodecimal
7
718
Seven in Base 18 Octodecimal
23
1518
Twenty-Three in Base 18 Octodecimal
131
7518
One Hundred and Thirty-One in Base 18 Octodecimal

Prime Factorization

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

2182 · 5181 · 7181 · 15181 · 75181 = 405g818

Base Conversions

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