The Number

85

Eighty-Five

In Base 15 Quindecimal Is

5a15

The numbers with a 15 subscript use Base 15 Quindecimal notation.

For more familiar numbers: See Eighty-Five in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

82
5715
Eighty-Two in Base 15 Quindecimal
83
5815
Eighty-Three in Base 15 Quindecimal
84
5915
Eighty-Four in Base 15 Quindecimal
86
5b15
Eighty-Six in Base 15 Quindecimal
87
5c15
Eighty-Seven in Base 15 Quindecimal
88
5d15
Eighty-Eight in Base 15 Quindecimal

Scientific Notation

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

8.5e1

Reciprocal

A number multiplied with its reciprocal is one.

0.029a8c54629a8c515

The reciprocal of 85 in Base 15 Quindecimal.

Palindrome?

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

The number 5a15 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Eighty-five is a composite number with 4 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

Eighty-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-five has the following 2 prime factors:

5
515
Five in Base 15 Quindecimal
17
1215
Seventeen in Base 15 Quindecimal

Prime Factorization

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

5151 · 12151 = 5a15

Base Conversions

The number eighty-five in 35 different bases