The Number

166820

One Hundred and Sixty-Six Thousand Eight Hundred and Twenty

In Base 21 Unovigesimal Is

i05h21

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

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

Nearby Numbers

Positive, nonzero integers within three units

166817
i05e21
One Hundred and Sixty-Six Thousand Eight Hundred and Seventeen in Base 21 Unovigesimal
166818
i05f21
One Hundred and Sixty-Six Thousand Eight Hundred and Eightteen in Base 21 Unovigesimal
166819
i05g21
One Hundred and Sixty-Six Thousand Eight Hundred and Nineteen in Base 21 Unovigesimal
166821
i05i21
One Hundred and Sixty-Six Thousand Eight Hundred and Twenty-One in Base 21 Unovigesimal
166822
i05j21
One Hundred and Sixty-Six Thousand Eight Hundred and Twenty-Two in Base 21 Unovigesimal
166823
i05k21
One Hundred and Sixty-Six Thousand Eight Hundred and Twenty-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.

1.66820e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00013a2cbibdk19621

The reciprocal of 166820 in Base 21 Unovigesimal.

Palindrome?

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

The number i05h21 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 eight hundred and twenty is a composite number with 24 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 eight hundred and twenty is a composite number with 24 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 eight hundred and twenty has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
19
j21
Nineteen in Base 21 Unovigesimal
439
kj21
Four 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 · 5211 · j211 · kj211 = i05h21

Base Conversions

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