The Number

1585

One Thousand Five Hundred and Eighty-Five

Nearby Numbers

Positive, nonzero integers within three units

1582
One Thousand Five Hundred and Eighty-Two
1583
One Thousand Five Hundred and Eighty-Three
1584
One Thousand Five Hundred and Eighty-Four
1586
One Thousand Five Hundred and Eighty-Six
1587
One Thousand Five Hundred and Eighty-Seven
1588
One Thousand Five Hundred and Eighty-Eight

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.

0.0006309148264984228

The reciprocal of 1585.

Palindrome?

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

The number 1585 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 10 Decimal

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
Five
317
Three Hundred and Seventeen

Prime Factorization

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

51 · 3171 = 1585

Base Conversions

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