The Number

81005

Eighty-One Thousand and Five

In Base 12 Duodecimal Is

3aa6512

The numbers with a 12 subscript use Base 12 Duodecimal notation.

For more familiar numbers: See Eighty-One Thousand and Five in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

81002
3aa6212
Eighty-One Thousand and Two in Base 12 Duodecimal
81003
3aa6312
Eighty-One Thousand and Three in Base 12 Duodecimal
81004
3aa6412
Eighty-One Thousand and Four in Base 12 Duodecimal
81006
3aa6612
Eighty-One Thousand and Six in Base 12 Duodecimal
81007
3aa6712
Eighty-One Thousand and Seven in Base 12 Duodecimal
81008
3aa6812
Eighty-One Thousand and Eight in Base 12 Duodecimal

Scientific Notation

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

8.1005e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000030a410879a601b5812

The reciprocal of 81005 in Base 12 Duodecimal.

Palindrome?

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

The number 3aa6512 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 and five is a composite number with 8 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand and five 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 eighty-one thousand and five has the following 3 prime factors:

5
512
Five in Base 12 Duodecimal
17
1512
Seventeen in Base 12 Duodecimal
953
67512
Nine Hundred and Fifty-Three in Base 12 Duodecimal

Prime Factorization

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

5121 · 15121 · 675121 = 3aa6512

Base Conversions

The number eighty-one thousand and five in 35 different bases