The Number

81641

Eighty-One Thousand Six Hundred and Forty-One

In Base 13 Tridecimal Is

2b21113

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

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

Nearby Numbers

Positive, nonzero integers within three units

81638
2b20b13
Eighty-One Thousand Six Hundred and Thirty-Eight in Base 13 Tridecimal
81639
2b20c13
Eighty-One Thousand Six Hundred and Thirty-Nine in Base 13 Tridecimal
81640
2b21013
Eighty-One Thousand Six Hundred and Forty in Base 13 Tridecimal
81642
2b21213
Eighty-One Thousand Six Hundred and Forty-Two in Base 13 Tridecimal
81643
2b21313
Eighty-One Thousand Six Hundred and Forty-Three in Base 13 Tridecimal
81644
2b21413
Eighty-One Thousand Six Hundred and Forty-Four in Base 13 Tridecimal

Scientific Notation

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

8.1641e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000047178ab357057bb13

The reciprocal of 81641 in Base 13 Tridecimal.

Palindrome?

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

The number 2b21113 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 six hundred and forty-one is a composite number with 8 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 six hundred and forty-one 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 six hundred and forty-one has the following 3 prime factors:

7
713
Seven in Base 13 Tridecimal
107
8313
One Hundred and Seven in Base 13 Tridecimal
109
8513
One Hundred and Nine in Base 13 Tridecimal

Prime Factorization

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

7131 · 83131 · 85131 = 2b21113

Base Conversions

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