The Number

861

Eight Hundred and Sixty-One

In Base 11 Undecimal Is

71311

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

858
71011
Eight Hundred and Fifty-Eight in Base 11 Undecimal
859
71111
Eight Hundred and Fifty-Nine in Base 11 Undecimal
860
71211
Eight Hundred and Sixty in Base 11 Undecimal
862
71411
Eight Hundred and Sixty-Two in Base 11 Undecimal
863
71511
Eight Hundred and Sixty-Three in Base 11 Undecimal
864
71611
Eight Hundred and Sixty-Four in Base 11 Undecimal

Scientific Notation

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

8.61e2

Reciprocal

A number multiplied with its reciprocal is one.

0.00160062022808aa3211

The reciprocal of 861 in Base 11 Undecimal.

Palindrome?

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

The number 71311 is not a palindrome.

Not A Prime Number

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

Eight hundred and sixty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Eight 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 eight hundred and sixty-one has the following 3 prime factors:

3
311
Three in Base 11 Undecimal
7
711
Seven in Base 11 Undecimal
41
3811
Forty-One in Base 11 Undecimal

Prime Factorization

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

3111 · 7111 · 38111 = 71311

Base Conversions

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