The Number

1565

One Thousand Five Hundred and Sixty-Five

Nearby Numbers

Positive, nonzero integers within three units

1562
One Thousand Five Hundred and Sixty-Two
1563
One Thousand Five Hundred and Sixty-Three
1564
One Thousand Five Hundred and Sixty-Four
1566
One Thousand Five Hundred and Sixty-Six
1567
One Thousand Five Hundred and Sixty-Seven
1568
One Thousand Five Hundred and Sixty-Eight

Scientific Notation

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

1.565e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0006389776357827476

The reciprocal of 1565.

Palindrome?

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

The number 1565 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 sixty-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 sixty-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 sixty-five has the following 2 prime factors:

5
Five
313
Three Hundred and Thirteen

Prime Factorization

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

51 · 3131 = 1565

Base Conversions

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