The Number

31581

Thirty-One Thousand Five Hundred and Eighty-One

In Base 13 Tridecimal Is

114b413

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

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

Nearby Numbers

Positive, nonzero integers within three units

31578
114b113
Thirty-One Thousand Five Hundred and Seventy-Eight in Base 13 Tridecimal
31579
114b213
Thirty-One Thousand Five Hundred and Seventy-Nine in Base 13 Tridecimal
31580
114b313
Thirty-One Thousand Five Hundred and Eighty in Base 13 Tridecimal
31582
114b513
Thirty-One Thousand Five Hundred and Eighty-Two in Base 13 Tridecimal
31583
114b613
Thirty-One Thousand Five Hundred and Eighty-Three in Base 13 Tridecimal
31584
114b713
Thirty-One Thousand Five 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.

3.1581e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000b9aba42258ab713

The reciprocal of 31581 in Base 13 Tridecimal.

Palindrome?

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

The number 114b413 is not a palindrome.

Not A Prime Number

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

Thirty-one thousand five hundred and eighty-one is a composite number with 18 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

Thirty-one thousand five hundred and eighty-one is a composite number with 18 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 thirty-one thousand five hundred and eighty-one has the following 3 prime factors:

3
313
Three in Base 13 Tridecimal
11
b13
Eleven 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

3132 · b132 · 23131 = 114b413

Base Conversions

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