The Number

561

Five Hundred and Sixty-One

In Base 8 Octal Is

10618

The numbers with a 8 subscript use Base 8 Octal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

558
10568
Five Hundred and Fifty-Eight in Base 8 Octal
559
10578
Five Hundred and Fifty-Nine in Base 8 Octal
560
10608
Five Hundred and Sixty in Base 8 Octal
562
10628
Five Hundred and Sixty-Two in Base 8 Octal
563
10638
Five Hundred and Sixty-Three in Base 8 Octal
564
10648
Five Hundred and Sixty-Four in Base 8 Octal

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.

0.000723217222740035158

The reciprocal of 561 in Base 8 Octal.

Palindrome?

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

The number 10618 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 8 Octal

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
38
Three in Base 8 Octal
11
138
Eleven in Base 8 Octal
17
218
Seventeen in Base 8 Octal

Prime Factorization

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

381 · 1381 · 2181 = 10618

Base Conversions

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