The Number

2165

Two Thousand One Hundred and Sixty-Five

In Base 21 Unovigesimal Is

4j221

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

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

Nearby Numbers

Positive, nonzero integers within three units

2162
4ik21
Two Thousand One Hundred and Sixty-Two in Base 21 Unovigesimal
2163
4j021
Two Thousand One Hundred and Sixty-Three in Base 21 Unovigesimal
2164
4j121
Two Thousand One Hundred and Sixty-Four in Base 21 Unovigesimal
2166
4j321
Two Thousand One Hundred and Sixty-Six in Base 21 Unovigesimal
2167
4j421
Two Thousand One Hundred and Sixty-Seven in Base 21 Unovigesimal
2168
4j521
Two Thousand One Hundred and Sixty-Eight in Base 21 Unovigesimal

Scientific Notation

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

2.165e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0045h8hbif70ib521

The reciprocal of 2165 in Base 21 Unovigesimal.

Palindrome?

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

The number 4j221 is not a palindrome.

Not A Prime Number

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

Two thousand one hundred and sixty-five is a composite number with 4 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Two thousand one hundred and sixty-five is a composite number with 4 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 two thousand one hundred and sixty-five has the following 2 prime factors:

5
521
Five in Base 21 Unovigesimal
433
kd21
Four Hundred and Thirty-Three in Base 21 Unovigesimal

Prime Factorization

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

5211 · kd211 = 4j221

Base Conversions

The number two thousand one hundred and sixty-five in 35 different bases