The Number

81558

Eighty-One Thousand Five Hundred and Fifty-Eight

In Base 13 Tridecimal Is

2b17913

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

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

Nearby Numbers

Positive, nonzero integers within three units

81555
2b17613
Eighty-One Thousand Five Hundred and Fifty-Five in Base 13 Tridecimal
81556
2b17713
Eighty-One Thousand Five Hundred and Fifty-Six in Base 13 Tridecimal
81557
2b17813
Eighty-One Thousand Five Hundred and Fifty-Seven in Base 13 Tridecimal
81559
2b17a13
Eighty-One Thousand Five Hundred and Fifty-Nine in Base 13 Tridecimal
81560
2b17b13
Eighty-One Thousand Five Hundred and Sixty in Base 13 Tridecimal
81561
2b17c13
Eighty-One Thousand Five Hundred and Sixty-One in Base 13 Tridecimal

Scientific Notation

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

8.1558e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00004724b04149679c313

The reciprocal of 81558 in Base 13 Tridecimal.

Palindrome?

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

The number 2b17913 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 five hundred and fifty-eight is a composite number with 24 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 five hundred and fifty-eight is a composite number with 24 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 five hundred and fifty-eight has the following 4 prime factors:

2
213
Two in Base 13 Tridecimal
3
313
Three in Base 13 Tridecimal
23
1a13
Twenty-Three in Base 13 Tridecimal
197
12213
One Hundred and Ninety-Seven in Base 13 Tridecimal

Prime Factorization

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

2131 · 3132 · 1a131 · 122131 = 2b17913

Base Conversions

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