The Number

13581

Thirteen Thousand Five Hundred and Eighty-One

In Base 12 Duodecimal Is

7a3912

The numbers with a 12 subscript use Base 12 Duodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

13578
7a3612
Thirteen Thousand Five Hundred and Seventy-Eight in Base 12 Duodecimal
13579
7a3712
Thirteen Thousand Five Hundred and Seventy-Nine in Base 12 Duodecimal
13580
7a3812
Thirteen Thousand Five Hundred and Eighty in Base 12 Duodecimal
13582
7a3a12
Thirteen Thousand Five Hundred and Eighty-Two in Base 12 Duodecimal
13583
7a3b12
Thirteen Thousand Five Hundred and Eighty-Three in Base 12 Duodecimal
13584
7a4012
Thirteen Thousand Five Hundred and Eighty-Four in Base 12 Duodecimal

Scientific Notation

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

1.3581e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000163a46488259344712

The reciprocal of 13581 in Base 12 Duodecimal.

Palindrome?

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

The number 7a3912 is not a palindrome.

Not A Prime Number

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

Thirteen thousand five hundred and eighty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

Thirteen thousand five hundred and eighty-one is a composite number with 8 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 thirteen thousand five hundred and eighty-one has the following 2 prime factors:

3
312
Three in Base 12 Duodecimal
503
35b12
Five Hundred and Three in Base 12 Duodecimal

Prime Factorization

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

3123 · 35b121 = 7a3912

Base Conversions

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