The Number

1668

One Thousand Six Hundred and Sixty-Eight

In Base 21 Unovigesimal Is

3g921

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

1665
3g621
One Thousand Six Hundred and Sixty-Five in Base 21 Unovigesimal
1666
3g721
One Thousand Six Hundred and Sixty-Six in Base 21 Unovigesimal
1667
3g821
One Thousand Six Hundred and Sixty-Seven in Base 21 Unovigesimal
1669
3ga21
One Thousand Six Hundred and Sixty-Nine in Base 21 Unovigesimal
1670
3gb21
One Thousand Six Hundred and Seventy in Base 21 Unovigesimal
1671
3gc21
One Thousand Six Hundred and Seventy-One in Base 21 Unovigesimal

Scientific Notation

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

1.668e3

Reciprocal

A number multiplied with its reciprocal is one.

0.005bcab636027kd21

The reciprocal of 1668 in Base 21 Unovigesimal.

Palindrome?

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

The number 3g921 is not a palindrome.

Not A Prime Number

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

One thousand six hundred and sixty-eight is a composite number with 12 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

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

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
139
6d21
One Hundred and Thirty-Nine in Base 21 Unovigesimal

Prime Factorization

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

2212 · 3211 · 6d211 = 3g921

Base Conversions

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