The Number

81216

Eighty-One Thousand Two Hundred and Sixteen

In Base 13 Tridecimal Is

2ac7513

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

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

Nearby Numbers

Positive, nonzero integers within three units

81213
2ac7213
Eighty-One Thousand Two Hundred and Thirteen in Base 13 Tridecimal
81214
2ac7313
Eighty-One Thousand Two Hundred and Fourteen in Base 13 Tridecimal
81215
2ac7413
Eighty-One Thousand Two Hundred and Fifteen in Base 13 Tridecimal
81217
2ac7613
Eighty-One Thousand Two Hundred and Seventeen in Base 13 Tridecimal
81218
2ac7713
Eighty-One Thousand Two Hundred and Eightteen in Base 13 Tridecimal
81219
2ac7813
Eighty-One Thousand Two Hundred and Nineteen in Base 13 Tridecimal

Scientific Notation

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

8.1216e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00004757c729405949c13

The reciprocal of 81216 in Base 13 Tridecimal.

Palindrome?

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

The number 2ac7513 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 two hundred and sixteen is a composite number with 56 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 two hundred and sixteen is a composite number with 56 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 two hundred and sixteen has the following 3 prime factors:

2
213
Two in Base 13 Tridecimal
3
313
Three in Base 13 Tridecimal
47
3813
Forty-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

2136 · 3133 · 38131 = 2ac7513

Base Conversions

The number eighty-one thousand two hundred and sixteen in 35 different bases