The Number

81668

Eighty-One Thousand Six Hundred and Sixty-Eight

In Base 14 Quattuordecimal Is

21a9614

The numbers with a 14 subscript use Base 14 Quattuordecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

81665
21a9314
Eighty-One Thousand Six Hundred and Sixty-Five in Base 14 Quattuordecimal
81666
21a9414
Eighty-One Thousand Six Hundred and Sixty-Six in Base 14 Quattuordecimal
81667
21a9514
Eighty-One Thousand Six Hundred and Sixty-Seven in Base 14 Quattuordecimal
81669
21a9714
Eighty-One Thousand Six Hundred and Sixty-Nine in Base 14 Quattuordecimal
81670
21a9814
Eighty-One Thousand Six Hundred and Seventy in Base 14 Quattuordecimal
81671
21a9914
Eighty-One Thousand Six Hundred and Seventy-One in Base 14 Quattuordecimal

Scientific Notation

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

8.1668e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000682a83ca0d32b414

The reciprocal of 81668 in Base 14 Quattuordecimal.

Palindrome?

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

The number 21a9614 is not a palindrome.

Not A Prime Number

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

Eighty-one thousand six hundred and sixty-eight is a composite number with 12 total factors (including 1 and itself).   See primes in Base 14 Quattuordecimal

A Composite

Composites have more than just these two factors.

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 eighty-one thousand six hundred and sixty-eight has the following 3 prime factors:

2
214
Two in Base 14 Quattuordecimal
17
1314
Seventeen in Base 14 Quattuordecimal
1201
61b14
One Thousand Two Hundred and One in Base 14 Quattuordecimal

Prime Factorization

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

2142 · 13141 · 61b141 = 21a9614

Base Conversions

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