The Number

181807

One Hundred and Eighty-One Thousand Eight Hundred and Seven

In Base 13 Tridecimal Is

649a213

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

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

Nearby Numbers

Positive, nonzero integers within three units

181804
6499c13
One Hundred and Eighty-One Thousand Eight Hundred and Four in Base 13 Tridecimal
181805
649a013
One Hundred and Eighty-One Thousand Eight Hundred and Five in Base 13 Tridecimal
181806
649a113
One Hundred and Eighty-One Thousand Eight Hundred and Six in Base 13 Tridecimal
181808
649a313
One Hundred and Eighty-One Thousand Eight Hundred and Eight in Base 13 Tridecimal
181809
649a413
One Hundred and Eighty-One Thousand Eight Hundred and Nine in Base 13 Tridecimal
181810
649a513
One Hundred and Eighty-One Thousand Eight Hundred and Ten in Base 13 Tridecimal

Scientific Notation

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

1.81807e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00002071a44530a884713

The reciprocal of 181807 in Base 13 Tridecimal.

Palindrome?

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

The number 649a213 is not a palindrome.

Not A Prime Number

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

One hundred and eighty-one thousand eight hundred and 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.

One hundred and eighty-one thousand eight hundred and 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 one hundred and eighty-one thousand eight hundred and seven has the following 2 prime factors:

281
18813
Two Hundred and Eighty-One in Base 13 Tridecimal
647
3aa13
Six Hundred and Forty-Seven in Base 13 Tridecimal

Prime Factorization

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

188131 · 3aa131 = 649a213

Base Conversions

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