The Number

1585

One Thousand Five Hundred and Eighty-Five

In Base 11 Undecimal Is

121111

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

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

Nearby Numbers

Positive, nonzero integers within three units

1582
120911
One Thousand Five Hundred and Eighty-Two in Base 11 Undecimal
1583
120a11
One Thousand Five Hundred and Eighty-Three in Base 11 Undecimal
1584
121011
One Thousand Five Hundred and Eighty-Four in Base 11 Undecimal
1586
121211
One Thousand Five Hundred and Eighty-Six in Base 11 Undecimal
1587
121311
One Thousand Five Hundred and Eighty-Seven in Base 11 Undecimal
1588
121411
One Thousand Five Hundred and Eighty-Eight in Base 11 Undecimal

Scientific Notation

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

1.585e3

Reciprocal

A number multiplied with its reciprocal is one.

0.00092678218185a80311

The reciprocal of 1585 in Base 11 Undecimal.

Palindrome?

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

The number 121111 is not a palindrome.

Not A Prime Number

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

One thousand five hundred and eighty-five is a composite number with 4 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

One thousand five hundred and eighty-five is a composite number with 4 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 one thousand five hundred and eighty-five has the following 2 prime factors:

5
511
Five in Base 11 Undecimal
317
26911
Three Hundred and Seventeen in Base 11 Undecimal

Prime Factorization

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

5111 · 269111 = 121111

Base Conversions

The number one thousand five hundred and eighty-five in 35 different bases