The Number

218742

Two Hundred and Eightteen Thousand Seven Hundred and Forty-Two

In Base 21 Unovigesimal Is

12d0621

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

For more familiar numbers: See Two Hundred and Eightteen Thousand Seven Hundred and Forty-Two in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

218739
12d0321
Two Hundred and Eightteen Thousand Seven Hundred and Thirty-Nine in Base 21 Unovigesimal
218740
12d0421
Two Hundred and Eightteen Thousand Seven Hundred and Forty in Base 21 Unovigesimal
218741
12d0521
Two Hundred and Eightteen Thousand Seven Hundred and Forty-One in Base 21 Unovigesimal
218743
12d0721
Two Hundred and Eightteen Thousand Seven Hundred and Forty-Three in Base 21 Unovigesimal
218744
12d0821
Two Hundred and Eightteen Thousand Seven Hundred and Forty-Four in Base 21 Unovigesimal
218745
12d0921
Two Hundred and Eightteen Thousand Seven Hundred and Forty-Five in Base 21 Unovigesimal

Scientific Notation

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

2.18742e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000ie1hh63f63fg21

The reciprocal of 218742 in Base 21 Unovigesimal.

Palindrome?

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

The number 12d0621 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 seven hundred and forty-two is a composite number with 8 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 seven hundred and forty-two 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 two hundred and eightteen thousand seven hundred and forty-two has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
36457
3je121
Thirty-Six Thousand Four Hundred and Fifty-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

2211 · 3211 · 3je1211 = 12d0621

Base Conversions

The number two hundred and eightteen thousand seven hundred and forty-two in 35 different bases