The Number

87381

Eighty-Seven Thousand Three Hundred and Eighty-One

In Base 13 Tridecimal Is

30a0813

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

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

Nearby Numbers

Positive, nonzero integers within three units

87378
30a0513
Eighty-Seven Thousand Three Hundred and Seventy-Eight in Base 13 Tridecimal
87379
30a0613
Eighty-Seven Thousand Three Hundred and Seventy-Nine in Base 13 Tridecimal
87380
30a0713
Eighty-Seven Thousand Three Hundred and Eighty in Base 13 Tridecimal
87382
30a0913
Eighty-Seven Thousand Three Hundred and Eighty-Two in Base 13 Tridecimal
87383
30a0a13
Eighty-Seven Thousand Three Hundred and Eighty-Three in Base 13 Tridecimal
87384
30a0b13
Eighty-Seven Thousand Three Hundred and Eighty-Four in Base 13 Tridecimal

Scientific Notation

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

8.7381e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000043314433c1718b913

The reciprocal of 87381 in Base 13 Tridecimal.

Palindrome?

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

The number 30a0813 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 thousand three hundred and eighty-one is a composite number with 24 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

Eighty-seven thousand three hundred and eighty-one is a composite number with 24 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 thousand three hundred and eighty-one has the following 4 prime factors:

3
313
Three in Base 13 Tridecimal
7
713
Seven in Base 13 Tridecimal
19
1613
Nineteen in Base 13 Tridecimal
73
5813
Seventy-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

3132 · 7131 · 16131 · 58131 = 30a0813

Base Conversions

The number eighty-seven thousand three hundred and eighty-one in 35 different bases