The Number

421991

Four Hundred and Twenty-One Thousand Nine Hundred and Ninety-One

In Base 18 Octodecimal Is

4067h18

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

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

Nearby Numbers

Positive, nonzero integers within three units

421988
4067e18
Four Hundred and Twenty-One Thousand Nine Hundred and Eighty-Eight in Base 18 Octodecimal
421989
4067f18
Four Hundred and Twenty-One Thousand Nine Hundred and Eighty-Nine in Base 18 Octodecimal
421990
4067g18
Four Hundred and Twenty-One Thousand Nine Hundred and Ninety in Base 18 Octodecimal
421992
4068018
Four Hundred and Twenty-One Thousand Nine Hundred and Ninety-Two in Base 18 Octodecimal
421993
4068118
Four Hundred and Twenty-One Thousand Nine Hundred and Ninety-Three in Base 18 Octodecimal
421994
4068218
Four Hundred and Twenty-One Thousand Nine Hundred and Ninety-Four in Base 18 Octodecimal

Scientific Notation

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

4.21991e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000048ae3d4c3733918

The reciprocal of 421991 in Base 18 Octodecimal.

Palindrome?

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

The number 4067h18 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 nine hundred and ninety-one is a composite number with 8 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 nine hundred and ninety-one 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 four hundred and twenty-one thousand nine hundred and ninety-one has the following 3 prime factors:

17
h18
Seventeen in Base 18 Octodecimal
103
5d18
One Hundred and Three in Base 18 Octodecimal
241
d718
Two Hundred and Forty-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

h181 · 5d181 · d7181 = 4067h18

Base Conversions

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