The Number

218421

Two Hundred and Eightteen Thousand Four Hundred and Twenty-One

In Base 21 Unovigesimal Is

12c6021

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

218418
12c5i21
Two Hundred and Eightteen Thousand Four Hundred and Eightteen in Base 21 Unovigesimal
218419
12c5j21
Two Hundred and Eightteen Thousand Four Hundred and Nineteen in Base 21 Unovigesimal
218420
12c5k21
Two Hundred and Eightteen Thousand Four Hundred and Twenty in Base 21 Unovigesimal
218422
12c6121
Two Hundred and Eightteen Thousand Four Hundred and Twenty-Two in Base 21 Unovigesimal
218423
12c6221
Two Hundred and Eightteen Thousand Four Hundred and Twenty-Three in Base 21 Unovigesimal
218424
12c6321
Two Hundred and Eightteen Thousand Four Hundred and Twenty-Four in Base 21 Unovigesimal

Scientific Notation

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

2.18421e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000iedjjfb85aa921

The reciprocal of 218421 in Base 21 Unovigesimal.

Palindrome?

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

The number 12c6021 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 eightteen thousand four hundred and twenty-one is a composite number with 12 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Two hundred and eightteen thousand four hundred and twenty-one is a composite number with 12 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 eightteen thousand four hundred and twenty-one has the following 3 prime factors:

3
321
Three in Base 21 Unovigesimal
7
721
Seven in Base 21 Unovigesimal
3467
7i221
Three Thousand Four Hundred and Sixty-Seven in Base 21 Unovigesimal

Prime Factorization

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

3212 · 7211 · 7i2211 = 12c6021

Base Conversions

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