The Number

81512

Eighty-One Thousand Five Hundred and Twelve

In Base 13 Tridecimal Is

2b14213

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

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

Nearby Numbers

Positive, nonzero integers within three units

81509
2b13c13
Eighty-One Thousand Five Hundred and Nine in Base 13 Tridecimal
81510
2b14013
Eighty-One Thousand Five Hundred and Ten in Base 13 Tridecimal
81511
2b14113
Eighty-One Thousand Five Hundred and Eleven in Base 13 Tridecimal
81513
2b14313
Eighty-One Thousand Five Hundred and Thirteen in Base 13 Tridecimal
81514
2b14413
Eighty-One Thousand Five Hundred and Fourteen in Base 13 Tridecimal
81515
2b14513
Eighty-One Thousand Five Hundred and Fifteen in Base 13 Tridecimal

Scientific Notation

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

8.1512e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000472a652a7bab9113

The reciprocal of 81512 in Base 13 Tridecimal.

Palindrome?

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

The number 2b14213 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 twelve 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 five hundred and twelve 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 five hundred and twelve has the following 3 prime factors:

2
213
Two in Base 13 Tridecimal
23
1a13
Twenty-Three in Base 13 Tridecimal
443
28113
Four Hundred and Forty-Three in Base 13 Tridecimal

Prime Factorization

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

2133 · 1a131 · 281131 = 2b14213

Base Conversions

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