The Number

81930

Eighty-One Thousand Nine Hundred and Thirty

In Base 13 Tridecimal Is

2b3a413

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

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

Nearby Numbers

Positive, nonzero integers within three units

81927
2b3a113
Eighty-One Thousand Nine Hundred and Twenty-Seven in Base 13 Tridecimal
81928
2b3a213
Eighty-One Thousand Nine Hundred and Twenty-Eight in Base 13 Tridecimal
81929
2b3a313
Eighty-One Thousand Nine Hundred and Twenty-Nine in Base 13 Tridecimal
81931
2b3a513
Eighty-One Thousand Nine Hundred and Thirty-One in Base 13 Tridecimal
81932
2b3a613
Eighty-One Thousand Nine Hundred and Thirty-Two in Base 13 Tridecimal
81933
2b3a713
Eighty-One Thousand Nine Hundred and Thirty-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.

8.1930e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000046bb5869704560913

The reciprocal of 81930 in Base 13 Tridecimal.

Palindrome?

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

The number 2b3a413 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 thirty is a composite number with 16 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 thirty is a composite number with 16 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 thirty has the following 4 prime factors:

2
213
Two in Base 13 Tridecimal
3
313
Three in Base 13 Tridecimal
5
513
Five in Base 13 Tridecimal
2731
132113
Two Thousand Seven Hundred and Thirty-One 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 · 3131 · 5131 · 1321131 = 2b3a413

Base Conversions

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