The Number

81218

Eighty-One Thousand Two Hundred and Eightteen

In Base 21 Unovigesimal Is

8g3b21

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

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

Nearby Numbers

Positive, nonzero integers within three units

81215
8g3821
Eighty-One Thousand Two Hundred and Fifteen in Base 21 Unovigesimal
81216
8g3921
Eighty-One Thousand Two Hundred and Sixteen in Base 21 Unovigesimal
81217
8g3a21
Eighty-One Thousand Two Hundred and Seventeen in Base 21 Unovigesimal
81219
8g3c21
Eighty-One Thousand Two Hundred and Nineteen in Base 21 Unovigesimal
81220
8g3d21
Eighty-One Thousand Two Hundred and Twenty in Base 21 Unovigesimal
81221
8g3e21
Eighty-One Thousand Two Hundred and Twenty-One in Base 21 Unovigesimal

Scientific Notation

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

8.1218e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000285kkb1e31k221

The reciprocal of 81218 in Base 21 Unovigesimal.

Palindrome?

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

The number 8g3b21 is not a palindrome.

Not A Prime Number

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

Eighty-one thousand two hundred and eightteen is a composite number with 4 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand two hundred and eightteen is a composite number with 4 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 eighty-one thousand two hundred and eightteen has the following 2 prime factors:

2
221
Two in Base 21 Unovigesimal
40609
481g21
Forty Thousand Six Hundred and Nine 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 · 481g211 = 8g3b21

Base Conversions

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