The Number

21165

Twenty-One Thousand One Hundred and Sixty-Five

In Base 12 Duodecimal Is

102b912

The numbers with a 12 subscript use Base 12 Duodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21162
102b612
Twenty-One Thousand One Hundred and Sixty-Two in Base 12 Duodecimal
21163
102b712
Twenty-One Thousand One Hundred and Sixty-Three in Base 12 Duodecimal
21164
102b812
Twenty-One Thousand One Hundred and Sixty-Four in Base 12 Duodecimal
21166
102ba12
Twenty-One Thousand One Hundred and Sixty-Six in Base 12 Duodecimal
21167
102bb12
Twenty-One Thousand One Hundred and Sixty-Seven in Base 12 Duodecimal
21168
1030012
Twenty-One Thousand One Hundred and Sixty-Eight in Base 12 Duodecimal

Scientific Notation

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

2.1165e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000b90b841a7475b812

The reciprocal of 21165 in Base 12 Duodecimal.

Palindrome?

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

The number 102b912 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand one hundred and sixty-five is a composite number with 16 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand one hundred and sixty-five is a composite number with 16 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 twenty-one thousand one hundred and sixty-five has the following 4 prime factors:

3
312
Three in Base 12 Duodecimal
5
512
Five in Base 12 Duodecimal
17
1512
Seventeen in Base 12 Duodecimal
83
6b12
Eighty-Three in Base 12 Duodecimal

Prime Factorization

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

3121 · 5121 · 15121 · 6b121 = 102b912

Base Conversions

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