The Number

81008

Eighty-One Thousand and Eight

In Base 13 Tridecimal Is

2ab4513

The numbers with a 13 subscript use Base 13 Tridecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

81005
2ab4213
Eighty-One Thousand and Five in Base 13 Tridecimal
81006
2ab4313
Eighty-One Thousand and Six in Base 13 Tridecimal
81007
2ab4413
Eighty-One Thousand and Seven in Base 13 Tridecimal
81009
2ab4613
Eighty-One Thousand and Nine in Base 13 Tridecimal
81010
2ab4713
Eighty-One Thousand and Ten in Base 13 Tridecimal
81011
2ab4813
Eighty-One Thousand and Eleven in Base 13 Tridecimal

Scientific Notation

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

8.1008e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000047779a7c49117b513

The reciprocal of 81008 in Base 13 Tridecimal.

Palindrome?

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

The number 2ab4513 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 eight is a composite number with 20 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand and eight is a composite number with 20 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 eight has the following 3 prime factors:

2
213
Two in Base 13 Tridecimal
61
4913
Sixty-One in Base 13 Tridecimal
83
6513
Eighty-Three in Base 13 Tridecimal

Prime Factorization

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

2134 · 49131 · 65131 = 2ab4513

Base Conversions

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