The Number

561

Five Hundred and Sixty-One

In Base 9 Nonary Is

6839

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

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

Nearby Numbers

Positive, nonzero integers within three units

558
6809
Five Hundred and Fifty-Eight in Base 9 Nonary
559
6819
Five Hundred and Fifty-Nine in Base 9 Nonary
560
6829
Five Hundred and Sixty in Base 9 Nonary
562
6849
Five Hundred and Sixty-Two in Base 9 Nonary
563
6859
Five Hundred and Sixty-Three in Base 9 Nonary
564
6869
Five Hundred and Sixty-Four in Base 9 Nonary

Scientific Notation

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

5.61e2

Reciprocal

A number multiplied with its reciprocal is one.

0.001262271085863543349

The reciprocal of 561 in Base 9 Nonary.

Palindrome?

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

The number 6839 is not a palindrome.

Not A Prime Number

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

Five hundred and sixty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 9 Nonary

A Composite

Composites have more than just these two factors.

Five hundred and sixty-one 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 five hundred and sixty-one has the following 3 prime factors:

3
39
Three in Base 9 Nonary
11
129
Eleven in Base 9 Nonary
17
189
Seventeen 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 · 1291 · 1891 = 6839

Base Conversions

The number five hundred and sixty-one in 35 different bases