The Number

81040

Eighty-One Thousand and Forty

In Base 13 Tridecimal Is

2ab6b13

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

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

Nearby Numbers

Positive, nonzero integers within three units

81037
2ab6813
Eighty-One Thousand and Thirty-Seven in Base 13 Tridecimal
81038
2ab6913
Eighty-One Thousand and Thirty-Eight in Base 13 Tridecimal
81039
2ab6a13
Eighty-One Thousand and Thirty-Nine in Base 13 Tridecimal
81041
2ab6c13
Eighty-One Thousand and Forty-One in Base 13 Tridecimal
81042
2ab7013
Eighty-One Thousand and Forty-Two in Base 13 Tridecimal
81043
2ab7113
Eighty-One Thousand and Forty-Three in Base 13 Tridecimal

Scientific Notation

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

8.1040e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00004773a182a38318513

The reciprocal of 81040 in Base 13 Tridecimal.

Palindrome?

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

The number 2ab6b13 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 forty 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 forty 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 forty has the following 3 prime factors:

2
213
Two in Base 13 Tridecimal
5
513
Five in Base 13 Tridecimal
1013
5cc13
One Thousand and Thirteen 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 · 5131 · 5cc131 = 2ab6b13

Base Conversions

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