The Number

21906

Twenty-One Thousand Nine Hundred and Six

In Base 13 Tridecimal Is

9c8113

The numbers with a 13 subscript use Base 13 Tridecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21903
9c7b13
Twenty-One Thousand Nine Hundred and Three in Base 13 Tridecimal
21904
9c7c13
Twenty-One Thousand Nine Hundred and Four in Base 13 Tridecimal
21905
9c8013
Twenty-One Thousand Nine Hundred and Five in Base 13 Tridecimal
21907
9c8213
Twenty-One Thousand Nine Hundred and Seven in Base 13 Tridecimal
21908
9c8313
Twenty-One Thousand Nine Hundred and Eight in Base 13 Tridecimal
21909
9c8413
Twenty-One Thousand Nine Hundred and Nine in Base 13 Tridecimal

Scientific Notation

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

2.1906e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00013c45a11b355a2413

The reciprocal of 21906 in Base 13 Tridecimal.

Palindrome?

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

The number 9c8113 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 nine hundred and six is a composite number with 12 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and six 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 twenty-one thousand nine hundred and six has the following 3 prime factors:

2
213
Two in Base 13 Tridecimal
3
313
Three in Base 13 Tridecimal
1217
72813
One Thousand Two Hundred and Seventeen in Base 13 Tridecimal

Prime Factorization

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

2131 · 3132 · 728131 = 9c8113

Base Conversions

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