The Number

20865

Twenty Thousand Eight Hundred and Sixty-Five

In Base 9 Nonary Is

315539

The numbers with a 9 subscript use Base 9 Nonary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

20862
315509
Twenty Thousand Eight Hundred and Sixty-Two in Base 9 Nonary
20863
315519
Twenty Thousand Eight Hundred and Sixty-Three in Base 9 Nonary
20864
315529
Twenty Thousand Eight Hundred and Sixty-Four in Base 9 Nonary
20866
315549
Twenty Thousand Eight Hundred and Sixty-Six in Base 9 Nonary
20867
315559
Twenty Thousand Eight Hundred and Sixty-Seven in Base 9 Nonary
20868
315569
Twenty Thousand Eight Hundred and Sixty-Eight in Base 9 Nonary

Scientific Notation

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

2.0865e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000027420856862043089

The reciprocal of 20865 in Base 9 Nonary.

Palindrome?

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

The number 315539 is not a palindrome.

Not A Prime Number

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

Twenty thousand eight hundred and sixty-five is a composite number with 16 total factors (including 1 and itself).   See primes in Base 9 Nonary

A Composite

Composites have more than just these two factors.

Twenty thousand eight 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 thousand eight hundred and sixty-five has the following 4 prime factors:

3
39
Three in Base 9 Nonary
5
59
Five in Base 9 Nonary
13
149
Thirteen in Base 9 Nonary
107
1289
One Hundred and Seven in Base 9 Nonary

Prime Factorization

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

391 · 591 · 1491 · 12891 = 315539

Base Conversions

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