The Number

166990

One Hundred and Sixty-Six Thousand Nine Hundred and Ninety

In Base 21 Unovigesimal Is

i0dj21

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

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

Nearby Numbers

Positive, nonzero integers within three units

166987
i0dg21
One Hundred and Sixty-Six Thousand Nine Hundred and Eighty-Seven in Base 21 Unovigesimal
166988
i0dh21
One Hundred and Sixty-Six Thousand Nine Hundred and Eighty-Eight in Base 21 Unovigesimal
166989
i0di21
One Hundred and Sixty-Six Thousand Nine Hundred and Eighty-Nine in Base 21 Unovigesimal
166991
i0dk21
One Hundred and Sixty-Six Thousand Nine Hundred and Ninety-One in Base 21 Unovigesimal
166992
i0e021
One Hundred and Sixty-Six Thousand Nine Hundred and Ninety-Two in Base 21 Unovigesimal
166993
i0e121
One Hundred and Sixty-Six Thousand Nine Hundred and Ninety-Three in Base 21 Unovigesimal

Scientific Notation

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

1.66990e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000139ccffkdh4821

The reciprocal of 166990 in Base 21 Unovigesimal.

Palindrome?

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

The number i0dj21 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 sixty-six thousand nine hundred and ninety is a composite number with 8 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

One hundred and sixty-six thousand nine hundred and ninety 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 one hundred and sixty-six thousand nine hundred and ninety has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
16699
1gi421
Sixteen Thousand Six Hundred and Ninety-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

2211 · 5211 · 1gi4211 = i0dj21

Base Conversions

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