The Number

81155

Eighty-One Thousand One Hundred and Fifty-Five

In Base 13 Tridecimal Is

2ac2913

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

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

Nearby Numbers

Positive, nonzero integers within three units

81152
2ac2613
Eighty-One Thousand One Hundred and Fifty-Two in Base 13 Tridecimal
81153
2ac2713
Eighty-One Thousand One Hundred and Fifty-Three in Base 13 Tridecimal
81154
2ac2813
Eighty-One Thousand One Hundred and Fifty-Four in Base 13 Tridecimal
81156
2ac2a13
Eighty-One Thousand One Hundred and Fifty-Six in Base 13 Tridecimal
81157
2ac2b13
Eighty-One Thousand One Hundred and Fifty-Seven in Base 13 Tridecimal
81158
2ac2c13
Eighty-One Thousand One Hundred and Fifty-Eight in Base 13 Tridecimal

Scientific Notation

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

8.1155e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000476269104a081c313

The reciprocal of 81155 in Base 13 Tridecimal.

Palindrome?

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

The number 2ac2913 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 one hundred and fifty-five is a composite number with 4 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 one hundred and fifty-five is a composite number with 4 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 one hundred and fifty-five has the following 2 prime factors:

5
513
Five in Base 13 Tridecimal
16231
750713
Sixteen Thousand Two 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

5131 · 7507131 = 2ac2913

Base Conversions

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