The Number

2565

Two Thousand Five Hundred and Sixty-Five

In Base 21 Unovigesimal Is

5h321

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

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

Nearby Numbers

Positive, nonzero integers within three units

2562
5h021
Two Thousand Five Hundred and Sixty-Two in Base 21 Unovigesimal
2563
5h121
Two Thousand Five Hundred and Sixty-Three in Base 21 Unovigesimal
2564
5h221
Two Thousand Five Hundred and Sixty-Four in Base 21 Unovigesimal
2566
5h421
Two Thousand Five Hundred and Sixty-Six in Base 21 Unovigesimal
2567
5h521
Two Thousand Five Hundred and Sixty-Seven in Base 21 Unovigesimal
2568
5h621
Two Thousand Five 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.

2.565e3

Reciprocal

A number multiplied with its reciprocal is one.

0.003ch51g2i763kd21

The reciprocal of 2565 in Base 21 Unovigesimal.

Palindrome?

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

The number 5h321 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 five hundred and sixty-five is a composite number with 16 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Two thousand five 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 two thousand five hundred and sixty-five has the following 3 prime factors:

3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
19
j21
Nineteen in Base 21 Unovigesimal

Prime Factorization

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

3213 · 5211 · j211 = 5h321

Base Conversions

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