The Number

21605

Twenty-One Thousand Six Hundred and Five

In Base 30 Trigesimal Is

o0530

The numbers with a 30 subscript use Base 30 Trigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21602
o0230
Twenty-One Thousand Six Hundred and Two in Base 30 Trigesimal
21603
o0330
Twenty-One Thousand Six Hundred and Three in Base 30 Trigesimal
21604
o0430
Twenty-One Thousand Six Hundred and Four in Base 30 Trigesimal
21606
o0630
Twenty-One Thousand Six Hundred and Six in Base 30 Trigesimal
21607
o0730
Twenty-One Thousand Six Hundred and Seven in Base 30 Trigesimal
21608
o0830
Twenty-One Thousand Six Hundred and Eight in Base 30 Trigesimal

Scientific Notation

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

2.1605e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0017em5kb9f48530

The reciprocal of 21605 in Base 30 Trigesimal.

Palindrome?

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

The number o0530 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 six hundred and five is a composite number with 8 total factors (including 1 and itself).   See primes in Base 30 Trigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand six hundred and five is a composite number with 8 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 six hundred and five has the following 3 prime factors:

5
530
Five in Base 30 Trigesimal
29
t30
Twenty-Nine in Base 30 Trigesimal
149
4t30
One Hundred and Forty-Nine in Base 30 Trigesimal

Prime Factorization

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

5301 · t301 · 4t301 = o0530

Base Conversions

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