The Number

21385

Twenty-One Thousand Three Hundred and Eighty-Five

In Base 22 Duovigesimal Is

204122

The numbers with a 22 subscript use Base 22 Duovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21382
203k22
Twenty-One Thousand Three Hundred and Eighty-Two in Base 22 Duovigesimal
21383
203l22
Twenty-One Thousand Three Hundred and Eighty-Three in Base 22 Duovigesimal
21384
204022
Twenty-One Thousand Three Hundred and Eighty-Four in Base 22 Duovigesimal
21386
204222
Twenty-One Thousand Three Hundred and Eighty-Six in Base 22 Duovigesimal
21387
204322
Twenty-One Thousand Three Hundred and Eighty-Seven in Base 22 Duovigesimal
21388
204422
Twenty-One Thousand Three Hundred and Eighty-Eight in Base 22 Duovigesimal

Scientific Notation

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

2.1385e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000aklibi021hh822

The reciprocal of 21385 in Base 22 Duovigesimal.

Palindrome?

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

The number 204122 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 three hundred and eighty-five is a composite number with 16 total factors (including 1 and itself).   See primes in Base 22 Duovigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand three hundred and eighty-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 three hundred and eighty-five has the following 4 prime factors:

5
522
Five in Base 22 Duovigesimal
7
722
Seven in Base 22 Duovigesimal
13
d22
Thirteen in Base 22 Duovigesimal
47
2322
Forty-Seven in Base 22 Duovigesimal

Prime Factorization

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

5221 · 7221 · d221 · 23221 = 204122

Base Conversions

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