The Number

421

Four Hundred and Twenty-One

In Base 8 Octal Is

6458

The numbers with a 8 subscript use Base 8 Octal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

418
6428
Four Hundred and Eightteen in Base 8 Octal
419
6438
Four Hundred and Nineteen in Base 8 Octal
420
6448
Four Hundred and Twenty in Base 8 Octal
422
6468
Four Hundred and Twenty-Two in Base 8 Octal
423
6478
Four Hundred and Twenty-Three in Base 8 Octal
424
6508
Four Hundred and Twenty-Four in Base 8 Octal

Scientific Notation

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

4.21e2

Reciprocal

A number multiplied with its reciprocal is one.

0.001156526750711213678

The reciprocal of 421 in Base 8 Octal.

Palindrome?

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

The number 6458 is not a palindrome.

A Prime Number

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

Four hundred and twenty-one is the 82nd prime number.   See primes in Base 8 Octal

Not A Composite

Composites have more than just these two factors.

Four Hundred and Twenty-One is not a composite number because it has exactly two factors: One and Four Hundred and Twenty-One

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 has the following 1 prime factor:

421
6458
Four Hundred and Twenty-One in Base 8 Octal

Prime Factorization

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

64581 = 6458

Base Conversions

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