The Number

81312

Eighty-One Thousand Three Hundred and Twelve

In Base 21 Unovigesimal Is

8g8021

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

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

Nearby Numbers

Positive, nonzero integers within three units

81309
8g7i21
Eighty-One Thousand Three Hundred and Nine in Base 21 Unovigesimal
81310
8g7j21
Eighty-One Thousand Three Hundred and Ten in Base 21 Unovigesimal
81311
8g7k21
Eighty-One Thousand Three Hundred and Eleven in Base 21 Unovigesimal
81313
8g8121
Eighty-One Thousand Three Hundred and Thirteen in Base 21 Unovigesimal
81314
8g8221
Eighty-One Thousand Three Hundred and Fourteen in Base 21 Unovigesimal
81315
8g8321
Eighty-One Thousand Three Hundred and Fifteen in Base 21 Unovigesimal

Scientific Notation

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

8.1312e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000284g739bbje6h21

The reciprocal of 81312 in Base 21 Unovigesimal.

Palindrome?

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

The number 8g8021 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 three hundred and twelve is a composite number with 72 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 three hundred and twelve is a composite number with 72 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 three hundred and twelve has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
7
721
Seven in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal

Prime Factorization

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

2215 · 3211 · 7211 · b212 = 8g8021

Base Conversions

The number eighty-one thousand three hundred and twelve in 35 different bases