The Number

87

Eighty-Seven

In Base 13 Tridecimal Is

6913

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

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

Nearby Numbers

Positive, nonzero integers within three units

84
6613
Eighty-Four in Base 13 Tridecimal
85
6713
Eighty-Five in Base 13 Tridecimal
86
6813
Eighty-Six in Base 13 Tridecimal
88
6a13
Eighty-Eight in Base 13 Tridecimal
89
6b13
Eighty-Nine in Base 13 Tridecimal
90
6c13
Ninety in Base 13 Tridecimal

Scientific Notation

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

8.7e1

Reciprocal

A number multiplied with its reciprocal is one.

0.01c3397425107a0113

The reciprocal of 87 in Base 13 Tridecimal.

Palindrome?

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

The number 6913 is not a palindrome.

Not A Prime Number

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

Eighty-seven 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-seven 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-seven has the following 2 prime factors:

3
313
Three in Base 13 Tridecimal
29
2313
Twenty-Nine in Base 13 Tridecimal

Prime Factorization

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

3131 · 23131 = 6913

Base Conversions

The number eighty-seven in 35 different bases