The Number

81969

Eighty-One Thousand Nine Hundred and Sixty-Nine

In Base 13 Tridecimal Is

2b40413

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

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

Nearby Numbers

Positive, nonzero integers within three units

81966
2b40113
Eighty-One Thousand Nine Hundred and Sixty-Six in Base 13 Tridecimal
81967
2b40213
Eighty-One Thousand Nine Hundred and Sixty-Seven in Base 13 Tridecimal
81968
2b40313
Eighty-One Thousand Nine Hundred and Sixty-Eight in Base 13 Tridecimal
81970
2b40513
Eighty-One Thousand Nine Hundred and Seventy in Base 13 Tridecimal
81971
2b40613
Eighty-One Thousand Nine Hundred and Seventy-One in Base 13 Tridecimal
81972
2b40713
Eighty-One Thousand Nine Hundred and Seventy-Two in Base 13 Tridecimal

Scientific Notation

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

8.1969e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000046b690c236974a313

The reciprocal of 81969 in Base 13 Tridecimal.

Palindrome?

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

The number 2b40413 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 nine hundred and sixty-nine 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 nine hundred and sixty-nine 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 nine hundred and sixty-nine has the following 3 prime factors:

3
313
Three in Base 13 Tridecimal
89
6b13
Eighty-Nine in Base 13 Tridecimal
307
1a813
Three Hundred and 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

3131 · 6b131 · 1a8131 = 2b40413

Base Conversions

The number eighty-one thousand nine hundred and sixty-nine in 35 different bases