The Number

681668

Six Hundred and Eighty-One Thousand Six Hundred and Sixty-Eight

In Base 13 Tridecimal Is

1ab37013

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

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

Nearby Numbers

Positive, nonzero integers within three units

681665
1ab36a13
Six Hundred and Eighty-One Thousand Six Hundred and Sixty-Five in Base 13 Tridecimal
681666
1ab36b13
Six Hundred and Eighty-One Thousand Six Hundred and Sixty-Six in Base 13 Tridecimal
681667
1ab36c13
Six Hundred and Eighty-One Thousand Six Hundred and Sixty-Seven in Base 13 Tridecimal
681669
1ab37113
Six Hundred and Eighty-One Thousand Six Hundred and Sixty-Nine in Base 13 Tridecimal
681670
1ab37213
Six Hundred and Eighty-One Thousand Six Hundred and Seventy in Base 13 Tridecimal
681671
1ab37313
Six Hundred and Eighty-One Thousand Six Hundred and Seventy-One in Base 13 Tridecimal

Scientific Notation

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

6.81668e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000071089001944154913

The reciprocal of 681668 in Base 13 Tridecimal.

Palindrome?

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

The number 1ab37013 is not a palindrome.

Not A Prime Number

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

Six hundred and eighty-one thousand six hundred and sixty-eight is a composite number with 12 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

Six hundred and eighty-one thousand six hundred and sixty-eight is a composite number with 12 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 six hundred and eighty-one thousand six hundred and sixty-eight has the following 3 prime factors:

2
213
Two in Base 13 Tridecimal
13
1013
Thirteen in Base 13 Tridecimal
13109
5c7513
Thirteen Thousand One Hundred and 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

2132 · 10131 · 5c75131 = 1ab37013

Base Conversions

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